Damage Mechanics and Life Analysis, 6 credits

Skademekanik och livslängdsanalys, 6 hp

TMHL61

Main field of study

Mechanical Engineering

Course level

Second cycle

Course type

Programme course

Examiner

Daniel Leidermark

Director of studies or equivalent

Peter Schmidt

Education components

Preliminary scheduled hours: 66 h
Recommended self-study hours: 94 h

Available for exchange students

Yes
ECV = Elective / Compulsory / Voluntary
Course offered for Semester Period Timetable module Language Campus ECV
6CIEI Industrial Engineering and Management - International, M Sc in Engineering 8 (Spring 2017) 2 2 Swedish/English Linköping, Valla E
6CIEI Industrial Engineering and Management - International, M Sc in Engineering 8 (Spring 2017) 2 2 Swedish/English Linköping, Valla E
6CIEI Industrial Engineering and Management - International, M Sc in Engineering 8 (Spring 2017) 2 2 Swedish/English Linköping, Valla E
6CIEI Industrial Engineering and Management - International, M Sc in Engineering 8 (Spring 2017) 2 2 Swedish/English Linköping, Valla E
6CIEI Industrial Engineering and Management - International, M Sc in Engineering 8 (Spring 2017) 2 2 Swedish/English Linköping, Valla E
6CIEI Industrial Engineering and Management - International, M Sc in Engineering (Specialization Mechanical Engineering) 8 (Spring 2017) 2 2 Swedish/English Linköping, Valla E
6CIEI Industrial Engineering and Management - International, M Sc in Engineering (Specialization Mechanical Engineering) 8 (Spring 2017) 2 2 Swedish/English Linköping, Valla E
6CIEI Industrial Engineering and Management - International, M Sc in Engineering (Specialization Mechanical Engineering) 8 (Spring 2017) 2 2 Swedish/English Linköping, Valla E
6CIEI Industrial Engineering and Management - International, M Sc in Engineering (Specialization Mechanical Engineering) 8 (Spring 2017) 2 2 Swedish/English Linköping, Valla E
6CIEI Industrial Engineering and Management - International, M Sc in Engineering (Specialization Mechanical Engineering) 8 (Spring 2017) 2 2 Swedish/English Linköping, Valla E
6CIII Industrial Engineering and Management, M Sc in Engineering 8 (Spring 2017) 2 2 Swedish/English Linköping, Valla E
6CIII Industrial Engineering and Management, M Sc in Engineering (Specialization Mechanical Engineering) 8 (Spring 2017) 2 2 Swedish/English E
6CMMM Mechanical Engineering, M Sc in Engineering 8 (Spring 2017) 2 2 Swedish/English Linköping, Valla E
6CMMM Mechanical Engineering, M Sc in Engineering (Engineering Mechanics) 8 (Spring 2017) 2 2 Swedish/English Linköping, Valla E
6MMEC Mechanical Engineering, Master's programme 2 (Spring 2017) 2 2 Swedish/English Linköping, Valla E

Main field of study

Mechanical Engineering

Course level

Second cycle

Advancement level

A1X

Course 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 Materials

Intended 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.
At the end of the course, the student shall be able to
  • 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
Basic classic fatigue theory:
  • 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

LABALaboratory Work1 creditsU, G
TENAWritten examination5 creditsU, 3, 4, 5

Grades

Four-grade scale, LiU, U, 3, 4, 5

Department

Institutionen för ekonomisk och industriell utveckling

Director of Studies or equivalent

Peter Schmidt

Examiner

Daniel Leidermark

Course website and other links

Education components

Preliminary scheduled hours: 66 h
Recommended 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. 

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)
X
X

                            
1.2 Fundamental engineering knowledge (G1X level)
X
X

                            
1.3 Further knowledge, methods, and tools in one or several subjects in engineering or natural science (G2X level)
X
X

                            
1.4 Advanced knowledge, methods, and tools in one or several subjects in engineering or natural sciences (A1X level)

                            
1.5 Insight into current research and development work

                            
2. PERSONAL AND PROFESSIONAL SKILLS AND ATTRIBUTES
2.1 Analytical reasoning and problem solving
X
X

                            
2.2 Experimentation, investigation, and knowledge discovery
X

                            
2.3 System thinking

                            
2.4 Attitudes, thought, and learning

                            
2.5 Ethics, equity, and other responsibilities
X
X

                            
3. INTERPERSONAL SKILLS: TEAMWORK AND COMMUNICATION
3.1 Teamwork
X

                            
3.2 Communications
X

                            
3.3 Communication in foreign languages
X

                            
4. CONCEIVING, DESIGNING, IMPLEMENTING AND OPERATING SYSTEMS IN THE ENTERPRISE, SOCIETAL AND ENVIRONMENTAL CONTEXT
4.1 External, societal, and environmental context

                            
4.2 Enterprise and business context

                            
4.3 Conceiving, system engineering and management

                            
4.4 Designing

                            
4.5 Implementing

                            
4.6 Operating

                            
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

                            
5.2 Economic conditions for knowledge development

                            
5.3 Identification of needs, structuring and planning of research or development projects

                            
5.4 Execution of research or development projects

                            
5.5 Presentation and evaluation of research or development projects

                            

This tab contains public material from the course room in Lisam. The information published here is not legally binding, such material can be found under the other tabs on this page.

There are no files available for this course.