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Materials Testing and Defectoscopy

* Exchange students do not have to consider this information when selecting suitable courses for an exchange stay.

Course Unit Code636-2006/03
Number of ECTS Credits Allocated4 ECTS credits
Type of Course Unit *Optional
Level of Course Unit *First Cycle
Year of Study *Second Year
Semester when the Course Unit is deliveredSummer Semester
Mode of DeliveryFace-to-face
Language of InstructionCzech
Prerequisites and Co-Requisites Course succeeds to compulsory courses of previous semester
Name of Lecturer(s)Personal IDName
JON37doc. Ing. Petr Jonšta, Ph.D.
Summary
The course is dealing with basic mechanical properties, like elasticity, strength, plasticity and toughness. Their relationships to structure and processing of materials, especially metals, are discussed. The attention is also paid to another important properties, for e.g. resistance to cyclic loading and heat resistance. Students are informed about basic testing methods in accordance with the appropriate standards, in areas of both destructive and nondestructive testing.
Learning Outcomes of the Course Unit
- Define basic classification of mechanical properties and testing methods.
- Describe basic mechanical tests and their interpretation.
- Explain basic relations among mechanical properties of metallic structural materials, their structure and processing methods.
- Define nonconventional tests of mechanical properties: fracture toughness, fatigue, creep, relaxation tests.
- Explain the principles of basic defectoscopic methods and their exploitation in materials engineering.
Course Contents
1. Basic terms - quality, property. Classification of properties and testing methods.
2. Summary of crystallography terms, Miller indexes, defects of lattice.
3. Elasticity. Definition of stress, strain, state of stress (tenzors of stress and strain), Hook´s law, energy of elastic deformation, isotropic body.
4.-5. Basics of dislocation theory. Definition, classification of dislocations according to the Burger´s vector size and its orientation towards the dislocation line. Stress field, energy of dislocations, mobility of dislocations, Frank-Read source. Plastic deformation from the point of view of dislocation theory.
6. Tensile test. Definition and evaluation of yield point and ultimate strength, ductility and contraction. Uniform and non-uniform deformation, conventional diagram of tensile test, diagram of true stress-true strain. Additional basic static tests.
7. Hardness tests. Definition of hardness, overview and principles of individual tests.
8.-9. Mechanical properties of structural materials in real conditions of loading, limiting states. Materials properties at low temperatures and at higher strain rates, tests of specimens with notches or cracks. Evaluation of resistance against brittle fracture - impact bending test, Vidal´s curve, evaluation of the transition temperature. Basics of fracture mechanics, overview of testing methods, evaluation of fracture toughness.
10. Materials properties at repeated cyclic loading - fatigue. Testing methods, S-N curve, Smith´s diagram.
11. Materials properties at elevated temperatures. Creep and relaxation tests.
12.-13. Overview of technological tests. Defectoscopy, classification and principles of testing methods, applications in practice.
14. Summary, case studies.
Recommended or Required Reading
Required Reading:
CALLISTER, W. D. Materials Science and Engineering: An Introduction. 7. vyd. New York: Wiley, 2007. ISBN 978-0-471-73696-7.
VELES, P. Mechanické vlastnosti a skúšanie kovov. 1. vyd. Praha: ALFA/SNTL, 1985.
FIALA, J., V. MENTL a P. ŠUTTA. Struktura a vlastnosti materiálů. 1. vyd. Praha: Academia, 2003. ISBN 80-200-1223-0.
KOŠTIAL, P. et al. Materiálová diagnostika I. 1. upr. a rozš. vyd. Ostrava: VŠB-TU Ostrava, 2011. ISBN 978-80-248-2520-5.

Recommended Reading:
BOKŮVKA, O. et al. Fatigue of Materials at Low and High - Frequency Loading. 2. vyd. Žilina: University of Žilina, 2015. ISBN 978-80-554-1056-2.

KOPEC, B. et al. Nedestruktivní zkoušení materiálů a konstrukcí: (Nauka o materiálu IV). Brno: Akademické nakladatelství CERM, 2008.
ISBN 978-80-7204-591-4.
Planned learning activities and teaching methods
Lectures, Tutorials, Experimental work in labs
Assesment methods and criteria
Task TitleTask TypeMaximum Number of Points
(Act. for Subtasks)
Minimum Number of Points for Task Passing
Credit and ExaminationCredit and Examination100 (100)51
        CreditCredit35 21
        ExaminationExamination65 30