339-0522/01 – Experimental Stress Analysis (EP)

Gurantor departmentDepartment of Mechanics of MaterialsCredits5
Subject guarantordoc. Ing. František Fojtík, Ph.D.Subject version guarantordoc. Ing. František Fojtík, Ph.D.
Study levelundergraduate or graduateRequirementCompulsory
Study languageCzech
Year of introduction2010/2011Year of cancellation2014/2015
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+3

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

Experimental work in labs


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.

Compulsory literature:

[1] 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. [2] 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

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

Way of continuous check of knowledge in the course of semester

Test, example solutions



Other requirements

1. Základy fotoelasticimetrie. 2. Vyhodnocení napětí v celém objemu modelu – metoda integrace podél izostat, metoda rozdílu hlavních napětí. 3. Praktické aplikace fotoelasticimetrických měření. 4. Prostorová fotoelasticimetrie. 5. Základy tenzometrie, tenzometry, tenzometrické měření a jejich provozní aplikace. 6. Tenzometrické snímače sil, hmotnosti, zrychlení aj. 7. Tenzometrické měření rázových dějů. 8. Měření zbytkových napětí odvrtávací metodu. 9. Metoda křehkých laků. 10. Vizioplastická metoda – vyhodnocení v oblasti plastických deformací. 11. Metoda moiré – její použití v oblasti pružných i plastických deformací a napětí metodou postupného přibližování. 12.Metoda termální emise. Exkurse v oblasti použití měření a snímačů v hutních provozech.


Subject has no prerequisities.


Subject has no co-requisities.

Subject syllabus:

1. Basic of fotoelesticimetry 2. data evaluation in the whole body, integration izostat method, diference principal stress method 3. Fotoelasticitmetry measurement in practices 4. Space fotoelasticimetry 5. Basic of strain gauge, strain gauge, strain gauge measurement and its application 6. Strain gauge sensors, mass, acceleration, etc. 7. Impakt measurement by strain gauge sensors 8. Measurement residual stress by drilling method 9. Method of brittle lacquer 10. Viskoplastic method – evaluation in region of plasticity 11. Moire method – using at region of elastic and plastic deformation 12. Thermal emission method

Conditions for subject completion

Full-time form (validity from: 2010/2011 Winter semester, validity until: 2014/2015 Summer semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Exercises evaluation and Examination Credit and Examination 100  51
        Exercises evaluation Credit  
        Examination Examination  
Mandatory attendence parzicipation:

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.ZaměřeníFormStudy language Tut. centreYearWSType of duty
2012/2013 (N2301) Mechanical Engineering (3901T003) Applied Mechanics P Czech Ostrava 1 Compulsory study plan
2011/2012 (N2301) Mechanical Engineering (3901T003) Applied Mechanics P Czech Ostrava 1 Compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner