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THE MEASUREMENT OF LONGITUDINAL DEFORMATION OF MINIATURE TEST SPECIMENS

1 ŠTĚPÁNEK Martin
Co-authors:
1 ZAHÁLKA Martin 1 MACH Josef 1 MENTL Václav 1 BUNDA Zbyněk 1 VOLÁK Josef
Institution:
1 University of West Bohemia, Faculty of Mechanical Engineering, Regional Technological Institute, Pilsen, Czech Republic, EU
Conference:
26th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 24th - 26th 2017
Proceedings:
Proceedings 26th International Conference on Metallurgy and Materials
Pages:
1015-1019
ISBN:
978-80-87294-79-6
ISSN:
2694-9296
Published:
9th January 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
285 views / 136 downloads
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Abstract

The paper deals with the development of new clamping jaws which are designed for static tensile tests of miniature test specimens. The jaws are used to hold specimen of dimensions 2 x 1 - 20 mm. During the static tensile tests, there were problems with the measurement of longitudinal deformation by laser extensometer what caused unreliable stress vs. elongation curve. For the deformation measurement, an extensometer Zwick/Roell laserXtens was used. In the paper, three development levels of mechanical grips that were designed at Mechanical testing laboratory of the Regional Technological Institute (Faculty of Mechanical Engineering, University of West Bohemia) are described.

Keywords: Longitudinal deformation, miniature test specimen, clamping jaws, laser Xtens

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