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TALAT Lecture 2401: Fatigue Behaviour and Analysis

Description

This lecture explains why, when and where fatigue problems may arise and the special significance to aluminium as structural material; it helps to understand the effects of material and loading parameters on fatigue; to appreciate the statistical nature of fatigue and its importance in data analysis, evaluation and use; it shows how to estimate fatigue life under service conditions of time-dependent, variable amplitude loading; how to estimate stresses acting in notches and welds with conceptual approaches other than nominal stress; it provides qualitative and quantitative information on the classification of welded details and allow for more sophisticated design procedures. Background in materials engineering, design and fatigue is required.

Subjects

aluminium | aluminum | european aluminium association | eaa | talat | training in aluminium application technologies | training | metallurgy | technology | lecture | design | fatigue | fatigue cracks | susceptibility | cyclic loading | crack growth | crack propagation rate | endurance limit | predictive theories | damage accumulation theories | manson-coffin law | crack growth laws | ideal cumulative damage theory | fatigue data analysis | middle-cycle fatigue range | high-cycle fatigue range | fatigue diagrams | linear p-s-n curves | non-linear p-s-n curves | service behaviour | time dependent loads | load spectrum | cycle counting | rain-flow cycle counting method | service behaviour fatigue test | analytical life estimation | damage accumulation | palmgren-miner linear damage accumulation hypothesis | strain | fatigue life | notch theory | strain-life diagram | weld imperfections | static strength | fatigue strength | cracks | porosity | inclusions | oxides | lack of penetration | weld shape | lack of fusion | geometric misalignment | arc strike | spatter | post-weld mechanical imperfections | corematerials | ukoer | Engineering | H000

License

Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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TALAT Lecture 2401: Fatigue Behaviour and Analysis

Description

This lecture explains why, when and where fatigue problems may arise and the special significance to aluminium as structural material; it helps to understand the effects of material and loading parameters on fatigue; to appreciate the statistical nature of fatigue and its importance in data analysis, evaluation and use; it shows how to estimate fatigue life under service conditions of time-dependent, variable amplitude loading; how to estimate stresses acting in notches and welds with conceptual approaches other than nominal stress; it provides qualitative and quantitative information on the classification of welded details and allow for more sophisticated design procedures. Background in materials engineering, design and fatigue is required.

Subjects

aluminium | aluminum | european aluminium association | EAA | Training in Aluminium Application Technologies | training | metallurgy | technology | lecture | design | fatigue | fatigue cracks | susceptibility | cyclic loading | crack growth | crack propagation rate | endurance limit | predictive theories | damage accumulation theories | Manson-Coffin law | crack growth laws | ideal cumulative damage theory | fatigue data analysis | middle-cycle fatigue range | high-cycle fatigue range | fatigue diagrams | linear P-S-N curves | non-linear P-S-N curves | service behaviour | time dependent loads | load spectrum | cycle counting | rain-flow cycle counting method | service behaviour fatigue test | analytical life estimation | damage accumulation | Palmgren-Miner linear damage accumulation hypothesis | strain | fatigue life | notch theory | strain-life diagram | weld imperfections | static strength | fatigue strength | cracks | porosity | inclusions | oxides | lack of penetration | weld shape | lack of fusion | geometric misalignment | arc strike | spatter | post-weld mechanical imperfections | corematerials | ukoer

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3.35 Fracture and Fatigue (MIT) 3.35 Fracture and Fatigue (MIT)

Description

Investigation of linear elastic and elastic-plastic fracture mechanics. Topics include microstructural effects on fracture in metals, ceramics, polymers, thin films, biological materials and composites, toughening mechanisms, crack growth resistance and creep fracture. Also covered: interface fracture mechanics, fatigue damage and dislocation substructures in single crystals, stress- and strain-life approach to fatigue, fatigue crack growth models and mechanisms, variable amplitude fatigue, corrosion fatigue and case studies of fracture and fatigue in structural, bioimplant, and microelectronic components. Investigation of linear elastic and elastic-plastic fracture mechanics. Topics include microstructural effects on fracture in metals, ceramics, polymers, thin films, biological materials and composites, toughening mechanisms, crack growth resistance and creep fracture. Also covered: interface fracture mechanics, fatigue damage and dislocation substructures in single crystals, stress- and strain-life approach to fatigue, fatigue crack growth models and mechanisms, variable amplitude fatigue, corrosion fatigue and case studies of fracture and fatigue in structural, bioimplant, and microelectronic components.

Subjects

Linear elastic | Linear elastic | elastic-plastic fracture mechanics | elastic-plastic fracture mechanics | Microstructural effects on fracture | Microstructural effects on fracture | Toughening mechanisms | Toughening mechanisms | Crack growth resistance | Crack growth resistance | creep fracture | creep fracture | Interface fracture mechanics | Interface fracture mechanics | Fatigue damage | Fatigue damage | dislocation substructures | dislocation substructures | Variable amplitude fatigue | Variable amplitude fatigue | Corrosion fatigue | Corrosion fatigue | experimental methods | experimental methods | microstructural effects | microstructural effects | metals | metals | ceramics | ceramics | polymers | polymers | thin films | thin films | biological materials | biological materials | composites | composites | single crystals | single crystals | stress-life | stress-life | strain-life | strain-life | structural components | structural components | bioimplant components | bioimplant components | microelectronic components | microelectronic components | case studies | case studies

License

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see http://ocw.mit.edu/terms/index.htm

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TALAT Lecture 2402: Design Recommendations for fatigue loaded structures

Description

This lecture presents calculation of design stresses for variable stress ratios in practice, explanation on the background of design recommendations; it demonstrates the concept of partial safety factors and supply appropriate background information for aluminium; it enables the designer to evaluate service behavior of structural details on a more sophisticated level applying the same principles as in current design recommendations; it provides understanding of the fatigue design procedure according to current recommendations. Background knowledge in engineering, materials and fatigue as well as some knowledge in statistics is required.

Subjects

aluminium | aluminum | european aluminium association | eaa | talat | training in aluminium application technologies | training | metallurgy | technology | lecture | design | fatigue | r-ratio effect | factor f (r) | eraas | residual stress effects | safety | reliability | partial safety factor | fatigue design curves | component testing | classification | design curves | s-n slope | steel codes | british standard 8118: 1991 | data analysis | gusset plate | tubular element | welded on edge | loading | fatigue assessment | tum-alfabet software | corematerials | ukoer | Engineering | H000

License

Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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TALAT Lecture 2405: Fatigue an Fracture in Aluminium Structures

Description

This lecture outlines modern fatigue design procedures and standards, the respective background information; it introduces fatigue design by testing; it presents fatigue data analysis and evaluation; it covers safety and reliability issues in aluminium design. This material has been utilized together with further definitions for classification of structural details to provide a proposal supported by the European Aluminium Association as a National Application Document, which may also be considered for introduction into the actual standard when this will be converted from an ENV to an EN.

Subjects

aluminium | aluminum | european aluminium association | eaa | talat | training in aluminium application technologies | training | metallurgy | technology | lecture | design | fatigue | data analysis | design line | safety | reliability | partial safety factors | fatigue loading | fatigue strength | safety index | aluminium data bank | aldaba | damage tolerant design | env 1999-2 | life prediction procedure | sequence effects | strain-life approach | corematerials | ukoer | Engineering | H000

License

Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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TALAT Lecture 4500: Resistance Welding

Description

This lecture describes the spot welding characteristics of aluminium and its alloys, the spot welding process, the choice of process parameters, strength values, electrode life and ?requirements for quality assurance. General engineering background and knowledge in aluminium metallurgy and physical properties, and surface characteristics (e.g. TALAT lecture 5101) is assumed.

Subjects

aluminium | aluminum | european aluminium association | eaa | talat | training in aluminium application technologies | training | metallurgy | technology | lecture | joining | fastening | mechanical | resistance welding | spot welding | physical properties | steel | resistance | oxide film | surface pretreatment | contact resistance | storage time | peltier effect | spot welding machines | relative voltage drop | resistance welding machine | life of electrodes | machine design | current type | current-force diagram | welding parameters | weld spot diameter | direct current | shear strength | weld strengthrepeated tensile stress fatigue strength | fatigue tests | engineering parts | fatigue strength | 2024cl sheets | quality assurance | imperfections | aeronautical standards | metallography | x-ray analysis | corematerials | ukoer | Engineering | H000

License

Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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TALAT Lecture 2402: Design Recommendations for fatigue loaded structures

Description

This lecture presents calculation of design stresses for variable stress ratios in practice, explanation on the background of design recommendations; it demonstrates the concept of partial safety factors and supply appropriate background information for aluminium; it enables the designer to evaluate service behavior of structural details on a more sophisticated level applying the same principles as in current design recommendations; it provides understanding of the fatigue design procedure according to current recommendations. Background knowledge in engineering, materials and fatigue as well as some knowledge in statistics is required.

Subjects

aluminium | aluminum | european aluminium association | EAA | Training in Aluminium Application Technologies | training | metallurgy | technology | lecture | design | fatigue | R-ratio effect | factor f (R) | ERAAS | residual stress effects | safety | reliability | partial safety factor | fatigue design curves | component testing | classification | design curves | S-N slope | steel codes | british standard 8118: 1991 | data analysis | Gusset plate | tubular element | welded on edge | loading | fatigue assessment | TUM-ALFABET software | corematerials | ukoer

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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TALAT Lecture 2405: Fatigue an Fracture in Aluminium Structures

Description

This lecture outlines modern fatigue design procedures and standards, the respective background information; it introduces fatigue design by testing; it presents fatigue data analysis and evaluation; it covers safety and reliability issues in aluminium design. This material has been utilized together with further definitions for classification of structural details to provide a proposal supported by the European Aluminium Association as a National Application Document, which may also be considered for introduction into the actual standard when this will be converted from an ENV to an EN.

Subjects

aluminium | aluminum | european aluminium association | EAA | Training in Aluminium Application Technologies | training | metallurgy | technology | lecture | design | fatigue | data analysis | design line | safety | reliability | partial safety factors | fatigue loading | fatigue strength | safety index | aluminium data bank | AlDaBa | damage tolerant design | ENV 1999-2 | life prediction procedure | sequence effects | strain-life approach | corematerials | ukoer

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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TALAT Lecture 4500: Resistance Welding

Description

This lecture describes the spot welding characteristics of aluminium and its alloys, the spot welding process, the choice of process parameters, strength values, electrode life and ?requirements for quality assurance. General engineering background and knowledge in aluminium metallurgy and physical properties, and surface characteristics (e.g. TALAT lecture 5101) is assumed.

Subjects

aluminium | aluminum | european aluminium association | EAA | Training in Aluminium Application Technologies | training | metallurgy | technology | lecture | joining | fastening | mechanical | resistance welding | spot welding | physical properties | steel | resistance | oxide film | surface pretreatment | contact resistance | storage time | Peltier effect | spot welding machines | relative voltage drop | resistance welding machine | life of electrodes | machine design | current type | current-force diagram | welding parameters | weld spot diameter | direct current | shear strength | weld strengthrepeated tensile stress fatigue strength | fatigue tests | engineering parts | fatigue strength | 2024cl sheets | quality assurance | imperfections | aeronautical standards | metallography | x-ray analysis | corematerials | ukoer

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2.002 Mechanics and Materials II (MIT) 2.002 Mechanics and Materials II (MIT)

Description

This course provides Mechanical Engineering students with an awareness of various responses exhibited by solid engineering materials when subjected to mechanical and thermal loadings; an introduction to the physical mechanisms associated with design-limiting behavior of engineering materials, especially stiffness, strength, toughness, and durability; an understanding of basic mechanical properties of engineering materials, testing procedures used to quantify these properties, and ways in which these properties characterize material response; quantitative skills to deal with materials-limiting problems in engineering design; and a basis for materials selection in mechanical design. This course provides Mechanical Engineering students with an awareness of various responses exhibited by solid engineering materials when subjected to mechanical and thermal loadings; an introduction to the physical mechanisms associated with design-limiting behavior of engineering materials, especially stiffness, strength, toughness, and durability; an understanding of basic mechanical properties of engineering materials, testing procedures used to quantify these properties, and ways in which these properties characterize material response; quantitative skills to deal with materials-limiting problems in engineering design; and a basis for materials selection in mechanical design.

Subjects

beam bending | beam bending | buckling | buckling | vibration | vibration | polymers | polymers | viscoelasticity | viscoelasticity | strength | strength | ductility | ductility | stress | stress | stress concentration | stress concentration | sheet bending | sheet bending | heat treatment | heat treatment | fracture | fracture | plasticity | plasticity | creep | creep | fatigue | fatigue | solid materials | solid materials | mechanical loading | mechanical loading | thermal loading | thermal loading | design-limiting behavior | design-limiting behavior | stiffness | stiffness | toughness | toughness | durability | durability | engineering materials | engineering materials | materials-limiting problem | materials-limiting problem | materials selection | materials selection

License

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see http://ocw.mit.edu/terms/index.htm

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Palliative Care

Description

Dr Bee Wee tells us about Palliative Care in Oxford and her research on end of life care and fatigue. Dr Bee Wee is the Head of Palliative Care Research and Development, based at Sir Michael Sobell House in Oxford. Her current lines of research include End of life care for people with incurable cancer and advanced non-malignant disease, Symptom management and Rehabilitation. Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

fatigue | end of life care | symptom management | Palliative cave | fatigue | end of life care | symptom management | Palliative cave

License

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3.22 Mechanical Behavior of Materials (MIT) 3.22 Mechanical Behavior of Materials (MIT)

Description

Here we will learn about the mechanical behavior of structures and materials, from the continuum description of properties to the atomistic and molecular mechanisms that confer those properties to all materials. We will cover elastic and plastic deformation, creep, fracture and fatigue of materials including crystalline and amorphous metals, semiconductors, ceramics, and (bio)polymers, and will focus on the design and processing of materials from the atomic to the macroscale to achieve desired mechanical behavior. We will cover special topics in mechanical behavior for material systems of your choice, with reference to current research and publications. Here we will learn about the mechanical behavior of structures and materials, from the continuum description of properties to the atomistic and molecular mechanisms that confer those properties to all materials. We will cover elastic and plastic deformation, creep, fracture and fatigue of materials including crystalline and amorphous metals, semiconductors, ceramics, and (bio)polymers, and will focus on the design and processing of materials from the atomic to the macroscale to achieve desired mechanical behavior. We will cover special topics in mechanical behavior for material systems of your choice, with reference to current research and publications.

Subjects

Phenomenology | Phenomenology | mechanical behavior | mechanical behavior | material structure | material structure | deformation | deformation | failure | failure | elasticity | elasticity | viscoelasticity | viscoelasticity | plasticity | plasticity | creep | creep | fracture | fracture | fatigue | fatigue | metals | metals | semiconductors | semiconductors | ceramics | ceramics | polymers | polymers | microstructure | microstructure | composition | composition | semiconductor diodes | semiconductor diodes | thin films | thin films | carbon nanotubes | carbon nanotubes | battery materials | battery materials | superelastic alloys | superelastic alloys | defect nucleation | defect nucleation | student projects | student projects | viral capsides | viral capsides

License

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see http://ocw.mit.edu/terms/index.htm

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3.A27 Case Studies in Forensic Metallurgy (MIT) 3.A27 Case Studies in Forensic Metallurgy (MIT)

Description

TV programs such as "Law and Order" show how forensic experts are called upon to give testimony that often determines the outcome of court cases. Engineers are one class of expert who can help display evidence in a new light to solve cases. In this seminar you will be part of the problem-solving process, working through both previously solved and unsolved cases. Each week we will investigate cases, from the facts that make up each side to the potential evidence we can use as engineers to expose culprits. The cases range from disintegrating airplane engines to gas main explosions to Mafia murders. This seminar will be full of discussions about the cases and creative approaches to reaching the solutions. The approach is hands-on so you will have a chance to participate in the process, not TV programs such as "Law and Order" show how forensic experts are called upon to give testimony that often determines the outcome of court cases. Engineers are one class of expert who can help display evidence in a new light to solve cases. In this seminar you will be part of the problem-solving process, working through both previously solved and unsolved cases. Each week we will investigate cases, from the facts that make up each side to the potential evidence we can use as engineers to expose culprits. The cases range from disintegrating airplane engines to gas main explosions to Mafia murders. This seminar will be full of discussions about the cases and creative approaches to reaching the solutions. The approach is hands-on so you will have a chance to participate in the process, not

Subjects

case studies | case studies | failure | failure | fracture | fracture | seminar | seminar | stainless steel | stainless steel | aluminum | aluminum | catastrophic failure | catastrophic failure | soldering | soldering | brazing | brazing | welding | welding | corrosion | corrosion | oxidation | oxidation | fatigue | fatigue

License

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see http://ocw.mit.edu/terms/index.htm

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TALAT Lecture 2712: Design Example in Fatigue

Description

This is a fully documented calculation example with direct reference to the actual code provisions. Its purpose is to present an outline of necessary steps but also of possible considerations for other cases or possibilities of enhancement of fatigue behaviour in service. It is based on European Standard ENV 1999-2 (Eurocode 9)

Subjects

aluminium | aluminum | european aluminium association | eaa | talat | training in aluminium application technologies | training | metallurgy | technology | lecture | design | service conditions | loading spectrum | stress spectrum | structural detail | s-n curve parameters | fatigue damage | life check | damage equivalent stress | damage tolerant design | mean stress effect | environmental effects | enhancement of fatigue strength | quality requirements | fitness-for-purpose concept | inspection | acceptance levels | corematerials | ukoer | Engineering | H000

License

Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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3.35 Fracture and Fatigue (MIT)

Description

Investigation of linear elastic and elastic-plastic fracture mechanics. Topics include microstructural effects on fracture in metals, ceramics, polymers, thin films, biological materials and composites, toughening mechanisms, crack growth resistance and creep fracture. Also covered: interface fracture mechanics, fatigue damage and dislocation substructures in single crystals, stress- and strain-life approach to fatigue, fatigue crack growth models and mechanisms, variable amplitude fatigue, corrosion fatigue and case studies of fracture and fatigue in structural, bioimplant, and microelectronic components.

Subjects

Linear elastic | elastic-plastic fracture mechanics | Microstructural effects on fracture | Toughening mechanisms | Crack growth resistance | creep fracture | Interface fracture mechanics | Fatigue damage | dislocation substructures | Variable amplitude fatigue | Corrosion fatigue | experimental methods | microstructural effects | metals | ceramics | polymers | thin films | biological materials | composites | single crystals | stress-life | strain-life | structural components | bioimplant components | microelectronic components | case studies

License

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see https://ocw.mit.edu/terms/index.htm

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3.35 Fracture and Fatigue (MIT)

Description

Investigation of linear elastic and elastic-plastic fracture mechanics. Topics include microstructural effects on fracture in metals, ceramics, polymers, thin films, biological materials and composites, toughening mechanisms, crack growth resistance and creep fracture. Also covered: interface fracture mechanics, fatigue damage and dislocation substructures in single crystals, stress- and strain-life approach to fatigue, fatigue crack growth models and mechanisms, variable amplitude fatigue, corrosion fatigue and case studies of fracture and fatigue in structural, bioimplant, and microelectronic components.

Subjects

Linear elastic | elastic-plastic fracture mechanics | Microstructural effects on fracture | Toughening mechanisms | Crack growth resistance | creep fracture | Interface fracture mechanics | Fatigue damage | dislocation substructures | Variable amplitude fatigue | Corrosion fatigue | experimental methods | microstructural effects | metals | ceramics | polymers | thin films | biological materials | composites | single crystals | stress-life | strain-life | structural components | bioimplant components | microelectronic components | case studies

License

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see https://ocw.mit.edu/terms/index.htm

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TALAT Lecture 2712: Design Example in Fatigue

Description

This is a fully documented calculation example with direct reference to the actual code provisions. Its purpose is to present an outline of necessary steps but also of possible considerations for other cases or possibilities of enhancement of fatigue behaviour in service. It is based on European Standard ENV 1999-2 (Eurocode 9)

Subjects

aluminium | aluminum | european aluminium association | EAA | Training in Aluminium Application Technologies | training | metallurgy | technology | lecture | design | service conditions | loading spectrum | stress spectrum | structural detail | S-N curve parameters | fatigue damage | life check | damage equivalent stress | damage tolerant design | mean stress effect | environmental effects | enhancement of fatigue strength | quality requirements | fitness-for-purpose concept | inspection | acceptance levels | corematerials | ukoer

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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Palliative Care

Description

Dr Bee Wee tells us about Palliative Care in Oxford and her research on end of life care and fatigue. Dr Bee Wee is the Head of Palliative Care Research and Development, based at Sir Michael Sobell House in Oxford. Her current lines of research include End of life care for people with incurable cancer and advanced non-malignant disease, Symptom management and Rehabilitation. Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

fatigue | end of life care | symptom management | Palliative cave | fatigue | end of life care | symptom management | Palliative cave

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2.72 Elements of Mechanical Design (MIT) 2.72 Elements of Mechanical Design (MIT)

Description

This is an advanced course on modeling, design, integration and best practices for use of machine elements such as bearings, springs, gears, cams and mechanisms. Modeling and analysis of these elements is based upon extensive application of physics, mathematics and core mechanical engineering principles (solid mechanics, fluid mechanics, manufacturing, estimation, computer simulation, etc.). These principles are reinforced via (1) hands-on laboratory experiences wherein students conduct experiments and disassemble machines and (2) a substantial design project wherein students model, design, fabricate and characterize a mechanical system that is relevant to a real world application. Students master the materials via problems sets that are directly related to, and coordinated with, the deliv This is an advanced course on modeling, design, integration and best practices for use of machine elements such as bearings, springs, gears, cams and mechanisms. Modeling and analysis of these elements is based upon extensive application of physics, mathematics and core mechanical engineering principles (solid mechanics, fluid mechanics, manufacturing, estimation, computer simulation, etc.). These principles are reinforced via (1) hands-on laboratory experiences wherein students conduct experiments and disassemble machines and (2) a substantial design project wherein students model, design, fabricate and characterize a mechanical system that is relevant to a real world application. Students master the materials via problems sets that are directly related to, and coordinated with, the deliv

Subjects

biology | biology | chemistry | chemistry | synthetic biology | synthetic biology | project | project | biotech | biotech | genetic engineering | genetic engineering | GMO | GMO | ethics | ethics | biomedical ethics | biomedical ethics | genetics | genetics | recombinant DNA | recombinant DNA | DNA | DNA | gene sequencing | gene sequencing | gene synthesis | gene synthesis | biohacking | biohacking | computational biology | computational biology | iGEM | iGEM | BioBrick | BioBrick | systems biology | systems biology | machine design | machine design | hardware | hardware | machine element | machine element | design process | design process | design layout | design layout | prototype | prototype | mechanism | mechanism | engineering | engineering | fabrication | fabrication | lathe | lathe | precision engineering | precision engineering | group project | group project | project management | project management | CAD | CAD | fatigue | fatigue | Gantt chart | Gantt chart

License

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see http://ocw.mit.edu/terms/index.htm

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16.400 Human Factors Engineering (MIT) 16.400 Human Factors Engineering (MIT)

Description

This course is designed to provide both undergraduate and graduate students with a fundamental understanding of human factors that must be taken into account in the design and engineering of complex aviation and space systems. The primary focus is the derivation of human engineering design criteria from sensory, motor, and cognitive sources to include principles of displays, controls and ergonomics, manual control, the nature of human error, basic experimental design, and human-computer interaction in supervisory control settings. Undergraduate students will demonstrate proficiency through aviation accident case presentations, quizzes, homework assignments, and hands-on projects. Graduate students will complete all the undergraduate assignments; however, they are expected to complete a res This course is designed to provide both undergraduate and graduate students with a fundamental understanding of human factors that must be taken into account in the design and engineering of complex aviation and space systems. The primary focus is the derivation of human engineering design criteria from sensory, motor, and cognitive sources to include principles of displays, controls and ergonomics, manual control, the nature of human error, basic experimental design, and human-computer interaction in supervisory control settings. Undergraduate students will demonstrate proficiency through aviation accident case presentations, quizzes, homework assignments, and hands-on projects. Graduate students will complete all the undergraduate assignments; however, they are expected to complete a res

Subjects

human factors | human factors | attention and workload | attention and workload | manual control | manual control | automation | automation | decision making | decision making | situational awareness | situational awareness | anthropometry | anthropometry | environmental ergonomics | environmental ergonomics | space physiology | space physiology | research methods | research methods | space bioastronautics | space bioastronautics | fatigue | fatigue | Circadian rhythms | Circadian rhythms | response selection | response selection | control of movement | control of movement

License

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see http://ocw.mit.edu/terms/index.htm

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16.459 Bioengineering Journal Article Seminar (MIT) 16.459 Bioengineering Journal Article Seminar (MIT)

Description

Each term, the class selects a new set of professional journal articles on bioengineering topics of current research interest. Some papers are chosen because of particular content, others are selected because they illustrate important points of methodology. Each week, one student leads the discussion, evaluating the strengths, weaknesses, and importance of each paper. Subject may be repeated for credit a maximum of four terms. Letter grade given in the last term applies to all accumulated units of 16.459. Each term, the class selects a new set of professional journal articles on bioengineering topics of current research interest. Some papers are chosen because of particular content, others are selected because they illustrate important points of methodology. Each week, one student leads the discussion, evaluating the strengths, weaknesses, and importance of each paper. Subject may be repeated for credit a maximum of four terms. Letter grade given in the last term applies to all accumulated units of 16.459.

Subjects

bioastronautics | bioastronautics | human factors | human factors | human factors engineering | human factors engineering | operator performance | operator performance | automation | automation | human automation interaction | human automation interaction | performance enhancement | performance enhancement | safety design | safety design | spaceflight | spaceflight | impact of spaceflight on humans | impact of spaceflight on humans | intracranial pressure | intracranial pressure | vision change | vision change | astronaut health | astronaut health | astronaut safety | astronaut safety | fatigue | fatigue | sleep restriction | sleep restriction

License

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see http://ocw.mit.edu/terms/index.htm

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TALAT Lecture 2205: Special Design Issues

Description

This lecture describes the measurement and amount of residual stresses in extruded and welded profiles which have to be accounted for in design; it introduces the subject of corrosion and of preventive design measures; it describes the behavior and properties of structural aluminium alloys at ambient, low and elevated temperatures; it gives useful examples of structural applications of extrusions. Background in mechanical and structural engineering disciplines is assumed.

Subjects

aluminium | aluminum | european aluminium association | eaa | talat | training in aluminium application technologies | training | metallurgy | technology | lecture | design | product | structural design | residual stresses | extruded profiles | welded profiles | fatigue behaviour | corrosion | galvanic corrosion | differential aeration corrosion | working temperature | mechanical properties | linear thermal expansion | low temperatures | elevated temperatures | extrusion | corematerials | ukoer | Engineering | H000

License

Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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2.72 Elements of Mechanical Design (MIT)

Description

This is an advanced course on modeling, design, integration and best practices for use of machine elements such as bearings, springs, gears, cams and mechanisms. Modeling and analysis of these elements is based upon extensive application of physics, mathematics and core mechanical engineering principles (solid mechanics, fluid mechanics, manufacturing, estimation, computer simulation, etc.). These principles are reinforced via (1) hands-on laboratory experiences wherein students conduct experiments and disassemble machines and (2) a substantial design project wherein students model, design, fabricate and characterize a mechanical system that is relevant to a real world application. Students master the materials via problems sets that are directly related to, and coordinated with, the deliv

Subjects

biology | chemistry | synthetic biology | project | biotech | genetic engineering | GMO | ethics | biomedical ethics | genetics | recombinant DNA | DNA | gene sequencing | gene synthesis | biohacking | computational biology | iGEM | BioBrick | systems biology | machine design | hardware | machine element | design process | design layout | prototype | mechanism | engineering | fabrication | lathe | precision engineering | group project | project management | CAD | fatigue | Gantt chart

License

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see https://ocw.mit.edu/terms/index.htm

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TALAT Lecture 2403: Applied Fracture Mechanics

Description

This lecture demonstrates how to teach the principles and concepts of fracture mechanics as well as provide recommendations for practical applications; it provides necessary information for fatigue life estimations on the basis of fracture mechanics as a complementary method to the S-N concept. Background in engineering, materials and fatigue is required.

Subjects

aluminium | aluminum | european aluminium association | eaa | talat | training in aluminium application technologies | training | metallurgy | technology | lecture | design | fatigue | fracture | notch toughness | brittle fracture | performance level | toughness | crack size | stress level | stress intensity factors | deformation | crack tip | superposition | linear-elastic fracture mechanics | kic | astm-e399 test method | elastic-plastic fracture mechanics | crack opening displacement | test method bs 5762 | r-curves | astm-e561 | astm-e813 | astm-e1152 | j-r curves | jic | free surface correction fs | crack shape correction fe | finite plate dimension correction fw | correction factors for stress gradient fg | crack geometry | evaluation | welded coverplate | web stiffener | corematerials | ukoer | Engineering | H000

License

Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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TALAT Lecture 2404: Quality Considerations

Description

This lecture provides understanding of underlying concepts and tools for handling experimental data and its comparison to existing design recommendations; it provides understanding of classification parameters for structural details and quantitative links between design principles and quality criteria; it enables sophisticated design for further structural details not included in current recommendations; it demonstrates methods of enhancing fatigue strength, especially as post-weld treatments. Background knowledge in engineering, materials and fatigue is required.

Subjects

aluminium | aluminum | european aluminium association | eaa | talat | training in aluminium application technologies | training | metallurgy | technology | lecture | design | fatigue | data bank | data management | alfabet project | design tools | quality criteria | acceptance criteria | quality assurance | quality requirements | geometry | shape | grinding | tig-remelting | dressing | peening | residual stress | spot heating | thermal stress relief | 5086 welds | ship construction | transportation | shot peening | rail cars | corematerials | ukoer | Engineering | H000

License

Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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