339-0905/02 – Limit States and Fatigue of Materials (MSUM)
Gurantor department | Department of Mechanics of Materials | Credits | 10 |
Subject guarantor | prof. Ing. Jan Fuxa, CSc. | Subject version guarantor | prof. Ing. Jan Fuxa, CSc. |
Study level | postgraduate | Requirement | Choice-compulsory |
Year | | Semester | winter + summer |
| | Study language | Czech |
Year of introduction | 2013/2014 | Year of cancellation | 2014/2015 |
Intended for the faculties | FS | Intended for study types | Doctoral |
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:
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
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
Předmět neobsahuje žádné hodnocení.