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Hysteresis Behaviour of 51CrV4 and Viscoplastic Modeling Aspects
Author(s) -
AlBaldawi Ammar,
Schreiber Lothar,
Wünsch Olaf
Publication year - 2011
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201110166
Subject(s) - viscoplasticity , hysteresis , materials science , strain rate , ansatz , stress relaxation , work (physics) , strain (injury) , strain hardening exponent , amplitude , mechanics , relaxation (psychology) , thermodynamics , composite material , constitutive equation , mathematics , physics , creep , finite element method , condensed matter physics , psychology , mathematical physics , medicine , social psychology , quantum mechanics
In this work we investigate the material behaviour of steel 51CrV4 in classical uniaxial strain controlled tension tests of different strain rates interposed by relaxation steps, in which the equilibrium stress observed is significantly smaller than the stresses seen in slowest strain rate test. Also, some cyclic experiments with different strain rates and amplitudes were done to analyze the hysteresis behaviour of the material. Against this background of experimental data the modeling possibilties of two models are explored: the Lion model and the Chaboche model with kinematic hardening ansatz. (© 2011 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)