636-3032/01 – Testing of properties in materials for energy industry (ZVME)

Gurantor departmentDepartment of Material EngineeringCredits4
Subject guarantordoc. Ing. Petr Jonšta, Ph.D.Subject version guarantordoc. Ing. Petr Jonšta, Ph.D.
Study levelundergraduate or graduateRequirementCompulsory
Year2Semesterwinter
Study languageCzech
Year of introduction2020/2021Year of cancellation2022/2023
Intended for the facultiesFMTIntended for study typesFollow-up Master
Instruction secured by
LoginNameTuitorTeacher giving lectures
JON37 doc. Ing. Petr Jonšta, Ph.D.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Credit and Examination 2+2
Part-time Credit and Examination 16+0

Subject aims expressed by acquired skills and competences

The student will be able to select the test methods for the specific materials used in the energy equipment, or their parts. The student will be able to describe the determination of basic and special material characteristics according to relevant valid standards. The student will learn to characterize materials used in power engineering from the point of view of their mechanical properties.

Teaching methods

Lectures
Seminars
Tutorials
Experimental work in labs

Summary

Předmět se zabývá studiem základních a speciálních mechanických charakteristik materiálů používaných v energetice. Na praktických příkladech jsou prezentovány zkušební metody pro stanovení základních mechanických charakteristik materiálů a rovněž pro stanovení charakteristik speciálních souvisejících s únavou, korozní únavou, lomovým chováním, odolnosti v prostředích obsahujících sulfan a tečením.

Compulsory literature:

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. ANDERSON, T.L. Fracture Mechanics, Fundamentals and Applications, CRC Press, NY 1995, 688 s. Determination of Mechanical Properties of Materials by Small Punch and other Miniature Testing Techniques. 2nd International Conference SSTT: Conference Proceedings. Ostrava: Ocelot Ltd. 2012. ISBN 978-80-260-0079-2.

Recommended literature:

ASHBY, M.F., D.R.H. JONES. Engineering Materials 1, An Introduction to Properties, Applications, and Design. 4th edition. Elsevier Ltd. 2012. 472 p. KLESNIL, M. and P. LUKÁŠ. Fatigue of metallic materials, 2nd ed. Elsevier Science, 1992. ISBN 9780444987235. ČADEK, J. Creep in metallic materials, Academia Praha 1988, 376 p.

Way of continuous check of knowledge in the course of semester

Průběžné ověření studijních výsledků: prezenční forma studia - 2 písemné testy, 3 zpracované programy v průběhu semestru; kombinovaná forma studia - 1 semestrální projekt. Závěrečné ověření studijních výsledků: prezenční i kombinovaná forma studia - písemná zkouška.

E-learning

Other requirements

There are no further special requirements.

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

1. Test methods for evaluating the material properties and their distribution. 2. Determination of mechanical characteristics by tensile test – yield strength, Young´s modulus, tensile strength, elongation, contraction, strain hardening exponent. Overview of hardness test methods, principles. 3.-4. Fundamentals of fracture mechanics – methods of loading of the body with a crack. Linear elastic fracture mechanics (stress in a cracked body, driving force of crack, fracture toughness), elastic-plastic fracture mechanics (crack tip opening displacement, J-integral, stable crack growth under uniaxial loading). 5. Test methods for determining the fatigue characteristics of materials (S-N curve, Manson-Coffin curve). Evaluation of the resistance of the material to fatigue crack growth. 6.-7. Evaluation of the fracture behavior of metallic materials. Philosophy of transition temperature – Charpy impact test, Drop-weight test (DWT), Drop-weight tear test (DWTT), Impact bend test for large bodies (DT-dynamic tear). Philosophy based on fracture mechanics – the general temperature dependence of fracture toughness, plane-strain fracture toughness KIC, determination of fracture toughness in the transition region, determination of fracture toughness using multi-specimen testing, determination of the reference temperature T0. 8.-9. Procedures for determining the creep characteristics of metallic materials. Limit temperature Tg, creep curve. Basic characteristics of the creep resistance of materials. Practical examples of the evaluation of creep test results. 10.-11. Evaluation of resistance of structural steels to stress corrosion cracking and corrosion fatigue in aqueous environments. Mechanism of stable crack growth. Evaluation of resistance of steels to hydrogen embrittlement. 12. Evaluation of mechanical properties of structural steels using penetration tests. Principle of a ball penetration test (Bulge Punch Test). Procedure for performing time-independent penetration tests. Determination of the yield strength and tensile strength of steel from the results of penetration tests. 13. Determination of the transition behavior of steel and creep characteristics from the results of penetration tests. 14. Estimation of the fracture toughness from the results of penetration tests. The two-stage method to determine KIC. Direct estimation of the fracture toughness from the results of penetration tests. Innovative approach to the estimate of the fracture toughness JIC.

Conditions for subject completion

Full-time form (validity from: 2020/2021 Winter semester, validity until: 2022/2023 Summer semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of pointsMax. počet pokusů
Credit and Examination Credit and Examination 100 (100) 51
        Credit Credit 35  21
        Examination Examination 65  30 3
Mandatory attendence participation: Required participation in exercises.

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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
2021/2022 (N0719A270004) Materials and technologies for energy industry P Czech Ostrava 2 Compulsory study plan
2021/2022 (N0719A270004) Materials and technologies for energy industry K Czech Ostrava 2 Compulsory study plan
2020/2021 (N0719A270004) Materials and technologies for energy industry K Czech Ostrava 2 Compulsory study plan
2020/2021 (N0719A270004) Materials and technologies for energy industry P Czech Ostrava 2 Compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner

Assessment of instruction

Předmět neobsahuje žádné hodnocení.