330-0538/01 – Experimental Stress Analysis (EP)

Gurantor departmentDepartment of Applied MechanicsCredits4
Subject guarantordoc. Ing. František Fojtík, Ph.D.Subject version guarantordoc. Ing. František Fojtík, Ph.D.
Study levelundergraduate or graduateRequirementCompulsory
Year1Semestersummer
Study languageCzech
Year of introduction2021/2022Year of cancellation
Intended for the facultiesFSIntended for study typesFollow-up Master
Instruction secured by
LoginNameTuitorTeacher giving lectures
FOJ08 doc. Ing. František Fojtík, Ph.D.
SOF007 doc. Ing. Michal Šofer, 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

To give students of Applied Mechanics with different experimental methods designed to analyze the deformation (stress) behavior of materials, which is induced in components of external loads or residual stress from the technological processes of manufacture, etc. Students learn the application of selected methods to specific examples.

Teaching methods

Lectures
Tutorials
Experimental work in labs

Summary

Basics of photoelasticity – linear and circularly polarized light, temporary birefringence, Wertheim law. Determination of stress on body´s unloaded surface, reflex photoelasticity. Basics of extensometry – principle of the method, basic types of strain gauges, bridge connections, thermal compensation, evaluation of strain gauge roses. Strain gauge sensors. Force, torque, weight and shock load measurements. Methods of measuring residual stresses and their evaluation. Optical methods of deformation measurement - Digital image correlation.

Compulsory literature:

[1] DALLY, J. W., RILEY, W. F.: Experimental Stress Analysis. Mc. Graw-Hill, New York, 1978. [2] DURELLI, A., et all: Introduction to the theoretical and experimental analysis of stress and strain. Mc. Graw-Hill Book Comp. Inc., 1958. [3] FROCHT, M., M.: Photoelasticity. John Wiley & Sons, Inc. New York 1948. [4] JIAN LU: Handbook of Measurement of Residual Stresses. The Fairmont Press, Inc., Lilburn, 1999. [5] KHAN, AKHTAR, S.: Strain measurements and stress analysis, Prentice Hall, c2001, xiii, 247 p. [6] STEFANESCU, D., M.: Handbook of Force Transducers. Springer, 2011, ISBN 978-3-642-18296-9.

Recommended literature:

[1] Amidror, I. The Theory of the Moiré Phenomenon, Volume I: Periodic Layers. Springer-Verlag London Limited 2009. ISBN: 978-1-84882-180-4 [2] DOYLE, J.F.: Modern Experimental Stress Analysis: Completing the solution of partially specified problems. John Wiley & Sons, Ltd 2004, 424p. ISBN 0-470-86156-8. [3] SUTTON, M.A.; ORTEU J.-J.; SCHREIER, H. W. Image Correlation for Shape, Motion and Deformation Measurements. Basic Concepts, Theory and Applications. Springer Science+Business Media, LLC 2009, 321p. ISBN: 978-0-387-78746-6 [4] STEFANESCU, D., M.: Handbook of Force Transducers. Springer, 2011, ISBN 978-3-642-18296-9.

Way of continuous check of knowledge in the course of semester

Solutions examples and laboratory exercises, four protocols from laboratory exercises, test. The course ends with a combined exam.

E-learning

Other requirements

Requirements to the students are solved in exercise.

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

1. Basic of fotoelesticimetry. 2. Data evaluation in the whole body, diference shear stress method. 3. Fotoelasticitmetry measurement in practices. 4. Photostress method. 5. Space fotoelasticimetry. 6. Basic of strain gauge, types of strain gauges and their properties. 7. Methods for measuring the resistance strain gauges, strain gauge measurement and its application. 8. Strain gauge sensors, mass, acceleration, etc. 9. Strain gauge measurement of fast and impact events. 10. Optical methods of deformation measurement - Digital image correlation. 11. Methods suitable for residual stress measurement. 12. Measurement residual stress by hole drilling method. 13. Method of brittle lacquer, Moire method, Viskoplastic method – evaluation in region of plasticity.

Conditions for subject completion

Part-time form (validity from: 2021/2022 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 35  20
        Examination Examination 65  25
Mandatory attendence parzicipation: Zápočet a zkouška

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.ZaměřeníFormStudy language Tut. centreYearWSType of duty
2023/2024 (N0715A270033) Applied Mechanics NEM P Czech Ostrava 1 Compulsory study plan
2023/2024 (N0715A270033) Applied Mechanics NEM K Czech Ostrava 1 Compulsory study plan
2022/2023 (N0715A270033) Applied Mechanics NEM K Czech Ostrava 1 Compulsory study plan
2022/2023 (N0715A270033) Applied Mechanics NEM P Czech Ostrava 1 Compulsory study plan
2021/2022 (N0715A270033) Applied Mechanics NEM P Czech Ostrava 1 Compulsory study plan
2021/2022 (N0715A270033) Applied Mechanics NEM K Czech Ostrava 1 Compulsory study plan
2020/2021 (N0715A270033) Applied Mechanics NEM P Czech Ostrava 1 Compulsory study plan
2020/2021 (N0715A270033) Applied Mechanics NEM K Czech Ostrava 1 Compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner