EFFECTS OF DEVICE IMPERFECTIONS ON SMALL PUNCH TEST

1 VOLÁK Josef
Co-authors:
1 BUNDA Zbyněk 2 VARNER Miroslav 3 KOULA Václav 1 MACH Josef 1 ŠTĚPÁNEK Martin 1 MENTL Václav
Institutions:
1 RTI – University of West Bohemia, Pilsen, Czech Republic, EU, volak@rti.zcu.cz
2 ČKD Blansko Engineering a. s., Blansko, Czech Republic, EU, info@cbeng.cz
3 Dakel, ZD Rpety, Rpety, Hořovice, Czech Republic, EU, info@dakel.cz
Conference:
27th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 23rd - 25th 2018
Proceedings:
Proceedings 27th International Conference on Metallurgy and Materials
Pages:
646-651
ISBN:
978-80-87294-84-0
ISSN:
2694-9296
Published:
24th October 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
47 views / 10 downloads
Abstract

Description of the procedure and results are given for computer simulations of small punch test (SPT) performed on P92 structural steel. The maximum force calculated using the SPT simulation is about 5% higher than the measured value. The punch displacement at the maximum calculated force is 2% less than the measured punch displacement. Effects of several factors were analysed using the SPT simulation, such as friction between the test device and the test specimen, the geometry of the test device, and the clamping force. It was found that SPT results depend strongly on the amount of friction and on imperfections of the test device dimensions and geometry.

Keywords: small punch test, imperfection, simulation, finite element method
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