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Damage Mechanics and Life Analysis, 6 credits
Skademekanik och livslängdsanalys, 6 hp
TMHL61
Main field of study
Mechanical EngineeringCourse level
Second cycleCourse type
Programme courseExaminer
Daniel LeidermarkDirector of studies or equivalent
Peter SchmidtEducation components
Preliminary scheduled hours: 66 hRecommended self-study hours: 94 h
Available for exchange students
YesECV = Elective / Compulsory / Voluntary
Main field of study
Mechanical EngineeringCourse level
Second cycleAdvancement level
A1XCourse offered for
- Industrial Engineering and Management - International, M Sc in Engineering
- Industrial Engineering and Management, M Sc in Engineering
- Mechanical Engineering, M Sc in Engineering
- Mechanical Engineering, Master's programme
Entry requirements
Note: Admission requirements for non-programme students usually also include admission requirements for the programme and threshold requirements for progression within the programme, or corresponding.
Prerequisites
Linear algebra, multi-variable calculus and basic courses in Engineering Mechanics, Solid Mechanics and Engineering MaterialsIntended learning outcomes
The aim of the course is to give the student
- a basic understanding of the effect cracks and cyclic loading may have on the life of a design
- a basic theoretical knowledge in fracture mechanics
- a basic theoretical knowledge in classic fatigue theory (HCF och LCF)
- an insight in Finite Element-based life analysis and its industrial use
- the ability to independently solve not too advanced problems of the above type analytically and by using an FE-program.
- account for the theoretical basis of Fracture Mechanics and basic classic fatigue theory (HCF och LCF)
- solve not too advanced problems of the above type analytically and by using an FE-program
- give an account of how life analysis is used in the modern design process
Course content
Basic Fracture Mechanics:
- Stress field-based linear Fracture Mechanics: Stress intensity, fracture tougness.
- Applicability of linear Fracture Mechanics: Crack tip plasticity. Applicability criteria. Experimental determination of fracture toughness
- Thermodynamics: J and G. Stability
- Fatigue crack growth: Paris’ law. Cycle counting
- Stress based fatigue theory (HCF): Wöhler-diagrams/SN-curves. Mean-stress effect. Haigh-diagram. Linear damage acculmulation rules. Strain based fatigue theory (LCF). Basquin’s-, Coffin-Manson’s and Morrow’s equations. Ramberg-Osgood’s equation. Cyclic plasticity and Masing-behaviour. Neuber’s rule
Teaching and working methods
Lectures, teaching classes and laboratory work.
Examination
| LABA | Laboratory Work | 1 credits | U, G |
| TENA | Written examination | 5 credits | U, 3, 4, 5 |
Grades
Four-grade scale, LiU, U, 3, 4, 5Department
Institutionen för ekonomisk och industriell utvecklingDirector of Studies or equivalent
Peter SchmidtExaminer
Daniel LeidermarkCourse website and other links
Education components
Preliminary scheduled hours: 66 hRecommended self-study hours: 94 h
Course literature
T Dahlberg och A Ekberg: Failure, Fracture, Fatigue - An Introduction. Studentlitteratur, Lund 2009| Code | Name | Scope | Grading scale |
|---|---|---|---|
| LABA | Laboratory Work | 1 credits | U, G |
| TENA | Written examination | 5 credits | U, 3, 4, 5 |
Regulations (apply to LiU in its entirety)
The university is a government agency whose operations are regulated by legislation and ordinances, which include the Higher Education Act and the Higher Education Ordinance. In addition to legislation and ordinances, operations are subject to several policy documents. The Linköping University rule book collects currently valid decisions of a regulatory nature taken by the university board, the vice-chancellor and faculty/department boards.
LiU’s rule book for education at first-cycle and second-cycle levels is available at http://styrdokument.liu.se/Regelsamling/Innehall/Utbildning_pa_grund-_och_avancerad_niva.
Course literature is preliminary.
T Dahlberg och A Ekberg: Failure, Fracture, Fatigue - An Introduction. Studentlitteratur, Lund 2009
Note: The course matrix might contain more information in Swedish.
I = Introduce, U = Teach, A = Utilize
| I | U | A | Modules | Comment | ||
|---|---|---|---|---|---|---|
| 1. DISCIPLINARY KNOWLEDGE AND REASONING | ||||||
| 1.1 Knowledge of underlying mathematics and science (G1X level) |
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X
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X
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| 1.2 Fundamental engineering knowledge (G1X level) |
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X
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X
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| 1.3 Further knowledge, methods, and tools in one or several subjects in engineering or natural science (G2X level) |
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X
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X
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| 1.4 Advanced knowledge, methods, and tools in one or several subjects in engineering or natural sciences (A1X level) |
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| 1.5 Insight into current research and development work |
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| 2. PERSONAL AND PROFESSIONAL SKILLS AND ATTRIBUTES | ||||||
| 2.1 Analytical reasoning and problem solving |
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X
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X
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| 2.2 Experimentation, investigation, and knowledge discovery |
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X
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| 2.3 System thinking |
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| 2.4 Attitudes, thought, and learning |
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| 2.5 Ethics, equity, and other responsibilities |
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X
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X
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| 3. INTERPERSONAL SKILLS: TEAMWORK AND COMMUNICATION | ||||||
| 3.1 Teamwork |
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X
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| 3.2 Communications |
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X
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| 3.3 Communication in foreign languages |
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X
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| 4. CONCEIVING, DESIGNING, IMPLEMENTING AND OPERATING SYSTEMS IN THE ENTERPRISE, SOCIETAL AND ENVIRONMENTAL CONTEXT | ||||||
| 4.1 External, societal, and environmental context |
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| 4.2 Enterprise and business context |
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| 4.3 Conceiving, system engineering and management |
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| 4.4 Designing |
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| 4.5 Implementing |
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| 4.6 Operating |
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| 5. PLANNING, EXECUTION AND PRESENTATION OF RESEARCH DEVELOPMENT PROJECTS WITH RESPECT TO SCIENTIFIC AND SOCIETAL NEEDS AND REQUIREMENTS | ||||||
| 5.1 Societal conditions, including economic, social, and ecological aspects of sustainable development for knowledge development |
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| 5.2 Economic conditions for knowledge development |
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| 5.3 Identification of needs, structuring and planning of research or development projects |
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| 5.4 Execution of research or development projects |
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| 5.5 Presentation and evaluation of research or development projects |
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