339-0905/02 – Limit States and Fatigue of Materials (MSUM)

Gurantor departmentDepartment of Mechanics of MaterialsCredits10
Subject guarantorprof. Ing. Jan Fuxa, CSc.Subject version guarantorprof. Ing. Jan Fuxa, CSc.
Study levelpostgraduateRequirementChoice-compulsory
YearSemesterwinter + summer
Study languageCzech
Year of introduction2013/2014Year of cancellation2014/2015
Intended for the facultiesFSIntended for study typesDoctoral
Instruction secured by
LoginNameTuitorTeacher giving lectures
FUX50 prof. Ing. Jan Fuxa, CSc.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Examination 25+0
Part-time Examination 25+0

Subject aims expressed by acquired skills and competences

To teach students derive benefit from the newest knowledge of subject with possibility the knowledge further evolves and apply for complicated problems.

Teaching methods

Individual consultations
Experimental work in labs

Summary

Limit states of elastic, plastic, creep and fatigue straining. Effective stress and strain, referential shear and normal stresses. Elastic to plastic transition and its criterion. Plastic fracture criteria. Brittle fracture, Griffith criterion, Kc modes, transition temperature. Creep of metals - Hoff's analogy, constitutive equations, stress relaxation, cumulating of defects, breakdown. Fatigue of materials. Initialization of cracks, their develop Basqin's, Manson&Coffin's, Paris laws. Cumulating of defects, decomposition of fatigue cycles. Mean stress effect, Haigh's and Smith's diagrams.

Compulsory literature:

BANNANTINE, J.A., COMMER, J.J., HANDROCK, J.L.: Fundamentals og Metal Fatigue Analysis, Prentice Hall, Englewood Cliffs, New Jersey 07632, 1990 SZCZEPINSKI, W. (editor): Experimental methods in mechanics of solids. Elsevier Amster-dam - Oxford - New York - Tokyo, 1990, p.705, ISBN 83-01-08259-3 REES, D.W.: Basic solid mechanics. MacMillan press ltd. Houndmills, Basingstoke, Hamp-shire and London, 1997, p.396, ISBN 0-333-66609-7

Recommended literature:

BANNANTINE, J.A., COMMER, J.J., HANDROCK, J.L.: Fundamentals og Metal Fatigue Analysis, Prentice Hall, Englewood Cliffs, New Jersey 07632, 1990 SZCZEPINSKI, W. (editor): Experimental methods in mechanics of solids. Elsevier Amster-dam - Oxford - New York - Tokyo, 1990, p.705, ISBN 83-01-08259-3 REES, D.W.: Basic solid mechanics. MacMillan press ltd. Houndmills, Basingstoke, Hampshire and London, 1997, p.396, ISBN 0-333-66609-7 FUXA, J.: Creep a teplotní namáhání (sylabus). Katedra pružnosti a pevnosti, VŠB-TU Ostrava, 2003, p.49 FUXA, J.: Únava materiálu (sylabus). Katedra pružnosti a pevnosti, VŠB-TU Ostrava, 2005, p.52 FUXA, J.: Teorie plasticity (sylabus). Katedra pružnosti a pevnosti, VŠB-TU Ostrava, 2000, p.63 KUČERA, J.: Úvod do mechaniky lomu I. (Vruby a trhliny, nestabilní lom při statickém zatížení), FS VŠB- Technická universita Ostrava, 2002, p.151, ISBN 80- 7078-862-3 KUČERA, J.: Úvod do mechaniky lomu II. (Dvouparamterová lomová mechanika, nestabilní lom při dynamickém zatížení), FS VŠB- Technická universita Ostrava, 2006, p.138.

Additional study materials

Way of continuous check of knowledge in the course of semester

Příprava zadané problematiky v písemné formě.

E-learning

Other requirements

The student prepare individual account on selected topic

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

Initiators of bodies fracture. Constructionals notches. 2. Notched members. Neuber´s rule. 3. Cracks. Modes of fracture. Stress intensity factor. 4. Fracture of steels bodies. Definition. Tension test and other basic test. 5. Linear elastic fracture mechanics. 6. Elastic-plastic fracture mechanics. 7. Two parametric fracture mechanics. R-6 method. 8. Dynamics fracture mechanics. Temperature transition behaviour of steels. 9. Fatigue of materials. High cycle fatigue and low cycle fatigue. 10. Fatigue and life prediction. 11. Fatigue crack growth equation. 12. Irregular strain versus time histories. Life estimates.

Conditions for subject completion

Full-time form (validity from: 2013/2014 Winter semester, validity until: 2014/2015 Summer semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of pointsMax. počet pokusů
Examination Examination   3
Mandatory attendence participation:

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Conditions for subject completion and attendance at the exercises within ISP:

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Occurrence in study plans

Academic yearProgrammeBranch/spec.Spec.ZaměřeníFormStudy language Tut. centreYearWSType of duty
2014/2015 (P2346) Mechanical Engineering (2302V019) Contruction of Production Machines and Equipment P Czech Ostrava Choice-compulsory study plan
2014/2015 (P2346) Mechanical Engineering (2302V019) Contruction of Production Machines and Equipment K Czech Ostrava Choice-compulsory study plan
2014/2015 (P2301) Mechanical Engineering (2302V019) Contruction of Production Machines and Equipment P Czech Ostrava Choice-compulsory study plan
2014/2015 (P2301) Mechanical Engineering (3901V003) Applied Mechanics P Czech Ostrava Choice-compulsory study plan
2014/2015 (P2301) Mechanical Engineering (2302V019) Contruction of Production Machines and Equipment K Czech Ostrava Choice-compulsory study plan
2014/2015 (P2301) Mechanical Engineering (3901V003) Applied Mechanics K Czech Ostrava Choice-compulsory study plan
2013/2014 (P2301) Mechanical Engineering (2302V019) Contruction of Production Machines and Equipment P Czech Ostrava Choice-compulsory study plan
2013/2014 (P2301) Mechanical Engineering (2302V019) Contruction of Production Machines and Equipment K Czech Ostrava Choice-compulsory study plan
2013/2014 (P2301) Mechanical Engineering (3901V003) Applied Mechanics P Czech Ostrava Choice-compulsory study plan
2013/2014 (P2301) Mechanical Engineering (3901V003) Applied Mechanics K Czech Ostrava Choice-compulsory study plan
2013/2014 (P2346) Mechanical Engineering (2302V019) Contruction of Production Machines and Equipment P Czech Ostrava Choice-compulsory study plan
2013/2014 (P2346) Mechanical Engineering (2302V019) Contruction of Production Machines and Equipment K Czech Ostrava Choice-compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner

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