633-3019/01 – Plasticity of materials (PLMIng)

Gurantor departmentDepartment of Materials FormingCredits7
Subject guarantordoc. Ing. Petr Kawulok, Ph.D.Subject version guarantordoc. Ing. Petr Kawulok, Ph.D.
Study levelundergraduate or graduateRequirementCompulsory
Year2Semesterwinter
Study languageCzech
Year of introduction2019/2020Year of cancellation
Intended for the facultiesFMTIntended for study typesFollow-up Master
Instruction secured by
LoginNameTuitorTeacher giving lectures
KAW016 doc. Ing. Petr Kawulok, Ph.D.
KLI10 prof. Ing. Jiří Kliber, CSc.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Credit and Examination 3+3
Part-time Credit and Examination 12+4

Subject aims expressed by acquired skills and competences

Student will be able to identify grid disturbances, define the conditions of stress during forming, characterize the deformation of the monocrystal and polycrystal, define limit plasticity of metals, mathematically describe the stress - strain curves, analyze mathematical expression of softening processes, describe the possibility of austenite transformation during cooling steel, characterize the possibility of plastometric simulation and characterize the properties and usiabillity of progressive metallic materials.

Teaching methods

Lectures
Individual consultations
Tutorials
Experimental work in labs
Project work

Summary

The subject deals with mechanisms and mathematical description of plastic deformation, structural-forming processes taking place during hot and cold forming recpectivelly occuring during control cooling of forming products and provides a characteristic of progressive metallic materials.

Compulsory literature:

[1] BANABIC, D. et al. Formability of Metallic Materials: plastic anisotropy, formability testing, forming limits. New York: Springer, 2000. ISBN 3-540-67906-5. [2] GRONOSTAJSKI, Z. The constitutive equations for FEM analysis. Journal of Materials Processing Technology. 2000, 106(1-3), 40-44. ISSN 0924-0136. [3] KAWULOK, R., et al. Transformation kinetics of selected steel grades after plastic deformation. Metalurgija. 2016, 55(3), 357-360. ISSN 0543-5846.

Recommended literature:

[1] KAWULOK, P., et al. Credibility of various plastometric methods in simulation of hot rolling of the steel round bar. Metalurgija. 2014, 53(3), 299-302. ISSN 0543-5846. [2] KAWULOK, R., et al. Effect of deformation on the CCT diagram of steel 32CrB4. Metalurgija. 2015, 54(3), 473-476. ISSN 0543-5846.

Way of continuous check of knowledge in the course of semester

Credit: elaboration of 4 protocols, 1 seminar work and passing of the control test. Exam: combined (written and oral) exam.

E-learning

Other requirements

80% attendance at seminars, elaboration of 4 protocols, 1 seminar work and successfull passing of the control test.

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

• Crystalline structure of metals. Slipes and sliping planes - Sliping systems. • Deffects of crystal lattice. Vacations, dislocations and their intersections, stacking faults. The stress around dislocation and energy. • The tensity during forming, the general solution of spatial tensity. • Limit plasticity of metals, plasticity hypothesis. Effect of tensity state on limits od plasticity. Conditions of plasticity, indicator of state of stress, determination of limits the stress states. • Plastic deformation of monocrystall and polycrystall. The mechanism of plastic deformation. Increments of deformation stress. • The stress - strain curves during hot and cold forming. The basic mathematical description of stress - strain curves, using of linear regression. • Analysis of stress - strain curves controlled by dynamic softening processes. • The kinetics of recrystallization - the Avrami equation. The influence of thermomechanical conditions on kinetics of static and dynamic recrystallization. • The controll evolution of structure during deformation and during cooling of hot formed products. • The austenite transformation during cooling of steels. The characteristic and possibility of usinig transformation diagrams with influence of deformation. • The possibility aplication of plastometric simulation. The basic mathematical expression of stress and strain. Applicability to real forming processes. • The characteristics and usiability of progressive metallic materials.

Conditions for subject completion

Full-time form (validity from: 2019/2020 Winter semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Credit and Examination Credit and Examination 100 (100) 51
        Credit Credit 30  16
        Examination Examination 70  35
Mandatory attendence parzicipation: Participation min. 80%

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.ZaměřeníFormStudy language Tut. centreYearWSType of duty
2021/2022 (N0715A270003) Metallurgical engineering (S03) Forming of Progressive Metallic Materials P Czech Ostrava 2 Compulsory study plan
2021/2022 (N0715A270003) Metallurgical engineering (S03) Forming of Progressive Metallic Materials K Czech Ostrava 2 Compulsory study plan
2020/2021 (N0715A270003) Metallurgical engineering (S03) Forming of Progressive Metallic Materials P Czech Ostrava 2 Compulsory study plan
2020/2021 (N0715A270003) Metallurgical engineering (S03) Forming of Progressive Metallic Materials K Czech Ostrava 2 Compulsory study plan
2019/2020 (N0715A270003) Metallurgical engineering (S03) Forming of Progressive Metallic Materials P Czech Ostrava 2 Compulsory study plan
2019/2020 (N0715A270003) Metallurgical engineering (S03) Forming of Progressive Metallic Materials K Czech Ostrava 2 Compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner