Engineering Mechanics

International Conference

Proceedings Vol. 8 (2002)


INŽENÝRSKÁ MECHANIKA 2002

ENGINEERING MECHANICS 2002

NATIONAL CONFERENCE WITH INTERNATIONAL PARTICIPATION
May 13 – 16, 2002, Svratka, Czech Republic
;
Editors: Lubomír Houfek, Pavel Hlavoň, Petr Krejčí

Copyright © 2002 Institute of Mechanics of Solids, Faculty of Mechanical Engineering, Bruno University of Technology, Brno

ISBN 80-214-2109-6 (printed)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

Torsion tests for steel specimens and their numerical and experimental solutions
Karel Frydrýšek , Martin Fusek, Jan Fuxa
pages 55 - +9p., full text

Článek se zaměřuje na řešení torzního testu pro krátký ocelový vzorek. V průběhu řešení bylo respektováno uchycení v čelistech zkušebního stroje (3D mechanický kontakt), elastické a plastické deformace, ztráta stability a také dynamické vlivy torzního plastometru. Výsledky získané pomocí MKP (software MSCMARC/MENTAT a software ANSYS) jsou porovnány s experimentem. Konstituční rovnice izotropního materiálu byla získaná z experimentálních měření a nové metody vyhodnocování krutové zkoušky pro ocel 14109 ČSN 420074. / This paper focuses on the numerical solution of a torsion test for a short steel specimen. During the solution were considered fixation effects in the jaws of a laboratory test machine (3D mechanical contact with Coulomb friction), elastic and plastic strains, shape buckling effects and also the dynamic influences of a torsion plastometer. The results acquired through the FEM (software MSC.MARCIMENTAT and ANSYS) are also compared with the experimental results. Constitutive material equation was acquired from experimental measurements using the new evaluation methodforsteel14109 CSN 420074.


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