Course detail

Fatigue and Fracture Mechanics

FSI-ZULAcad. year: 2011/2012

Presented course is followed courses Strength of Material I and II, Finite Element Method and Computational Upgrades of CAD. Students will be deeply introduced to the theory of the material fracture and fatigue failure. On the base of this knowledge students will be able to solve particular engineering problems and finally, from this point of view make an optimization of engineering structures.

Language of instruction

Czech

Number of ECTS credits

5

Mode of study

Not applicable.

Guarantor

doc. Ing. Pavel Mazal, CSc.

Department

Institute of Machine and Industrial Design (ÚK)

Learning outcomes of the course unit

The students will understand the fatigue and fracture mechanics using finite element method. Students will be able to provide stuctural analysis using finite element method.

Prerequisites

Fundamental knowledge from areas of undergraduate Strength of material, elementary FEM and active work with ANSYS Classic.

Co-requisites

Not applicable.

Planned learning activities and teaching methods

Teaching methods depend on the type of course unit as specified in the article 7 of BUT Rules for Studies and Examinations.

Assesment methods and criteria linked to learning outcomes

Graded course-unit credit requirements: active participation in seminars, semestral project elaboration, passing the test based on finite element method theory, answering of tutor questions

Course curriculum

Not applicable.

Work placements

Not applicable.

Aims

Students will be able to use the finite element method (FEM) for assessment of the most often limit states of material. They will manage to select an appropriate method for solution of the most common problems of material failure. The theory of the material fracture and fatigue failure connected with numerical modeling will be used like a powerful tool for estimation of the residual life time of the engineering structures.

Specification of controlled education, way of implementation and compensation for absences

Participation in lectures is recommended, participation at seminars is checked and recorded. Two absences are allowed.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Anderson T.L., Fracture Mechanics-Fundamentals and Applications, CRC press, 1995
Lukáš P., Klesnil M., Fatigue of metallic materials, Elsevier, 1992
Madenci E., Guven I., The Finite Element Method and Application in Engineering Using ANSYS, Springer 2006
Ondráček E., Vrbka J., Janíček P., Mechanika těles – pružnost a pevnost II, VUT Brno,1988
Suresh S., Fatigue of materials, Cambridge University Press, 1998

Recommended reading

Not applicable.

Classification of course in study plans

  • Programme N2301-2 Master's

    branch M-KSI , 2 year of study, winter semester, compulsory

Type of course unit

 

Lecture

26 hod., optionally

Teacher / Lecturer

prof. Ing. Luboš Náhlík, Ph.D.
prof. Ing. Pavel Hutař, Ph.D.

Syllabus

1) Introduction, Failure theories-overview
2) Ductile failure of 3-D structure
3) Brittle fracture of a body without defect
4) Fracture mechanics-background
5) Linear elastic fracture mechanics-Stress intensity factor concept
6) Elastic-plastic fracture mechanics- J-integral
7) Brittle fracture – stability criteria
8) Stable fatigue crack growth – estimation of residual fatigue life time
9) Fatigue failure theory – background
10) Fatigue limit
11) Fatigue failure above the fatigue limit
12) Fatigue under non-symmetrical loading, random loading spectrum
13) Student’s project, verification by the lecturer.

Computer-assisted exercise

26 hod., compulsory

Teacher / Lecturer

prof. Ing. Luboš Náhlík, Ph.D.
prof. Ing. Pavel Hutař, Ph.D.

Syllabus

1.-13. Individual topics presented at lectures will be practiced at seminars.