339-0315/02 – Fatigue of material (UM)

Gurantor departmentDepartment of Mechanics of MaterialsCredits5
Subject guarantorprof. Ing. Jan Fuxa, CSc.Subject version guarantorprof. Ing. Jan Fuxa, CSc.
Study levelundergraduate or graduateRequirementCompulsory
Year3Semestersummer
Study languageCzech
Year of introduction2010/2011Year of cancellation2014/2015
Intended for the facultiesFSIntended for study typesBachelor
Instruction secured by
LoginNameTuitorTeacher giving lectures
SLA20 Dr. Ing. Ludmila Adámková
FUS76 doc. Ing. Martin Fusek, Ph.D.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Examination 2+2

Subject aims expressed by acquired skills and competences

The students will be acquainted with the basis of Linear Elastic FractureMechanics. The great attention is devoted too the problems of High-Cycle Fatigue .

Teaching methods

Lectures
Tutorials

Summary

1. Types of material failure. Constructional and structural notches. 2. Notches and stress concentration. Stress concentration factor, stress gradient. 3. Linear elastic stress analysis of cracks. 4. Modes of fracture. Stress intensity factor. 5. Brittle fracture. Mechanical properties of materials. 6. Linear elastic fracture mechanics. Griffith, s criterium. Sih,s criterium. 7. Fatigue failure. Wohler diagram. 8. S-N curves. The factors effects of Fatigue Limit. 9. Mean stress effects. Amplitude-mean diagrams. 10. Effects of notches. Notches factors. 11. Multiaxial Fatigue. 12. Safety factors with multiaxial fatigue. 13. Prediction approach of high cyclic fatigue lifetime. Fatigue moduls (summary). 14. Temperature fatigue.

Compulsory literature:

DOWLING,E.N. Mechanical Behavior of Materials. Prentice –Hall,INC. New jersey 1993. ISBN 0-11-026956-5.

Recommended literature:

ZEMÁNKOVÁ,J. Technická mechanika I. Úvod do lomové mechaniky. 1. vyd. Praha:ČVUT, 1981.123 s.

Way of continuous check of knowledge in the course of semester

Test, example solutions

E-learning

no

Další požadavky na studenta

Lecture attendance, not another request

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

1 Types of material failure. Constructional and structural notches. 2. Notches and stress concentration. Stress concentration factor, stress gradient. 3. Linear elastic stress analysis of cracks. 4. Modes of fracture. Stress intensity factor. 5. Brittle fracture. Mechanical properties of materials. 6. Linear elastic fracture mechanics. Griffith, s criterium. Sih,s criterium. 7. Fatigue failure. Wohler diagram. 8. S-N curves. The factors effects of Fatigue Limit. 9. Mean stress effects. Amplitude-mean diagrams. 10. Effects of notches. Notches factors. 11. Multiaxial Fatigue. 12. Safety factors with multiaxial fatigue. 13. Prediction approach of high cyclic fatigue lifetime. Fatigue moduls (summary). 14. Temperature fatigue.

Conditions for subject completion

Full-time form (validity from: 2011/2012 Summer semester, validity until: 2014/2015 Winter semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Examination Examination 100  51
Mandatory attendence parzicipation:

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.FormStudy language Tut. centreYearWSType of duty
2012/2013 (B2341) Engineering (3901R003) Applied Mechanics P Czech Ostrava 3 Compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner