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Modeling of latent energy storage effects in thermoplasticity of metals
Author(s) -
Fritzen Felix,
Böhlke Thomas,
Schnack Eckart
Publication year - 2007
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200700449
Subject(s) - computation , isotropy , hardening (computing) , constant (computer programming) , plasticity , materials science , mechanics , energy storage , thermodynamics , power (physics) , computer science , physics , composite material , algorithm , quantum mechanics , layer (electronics) , programming language
The modeling of coupled thermo‐plasticity includes the consideration of self‐heating which produces significant effects in many metal‐forming applications. While it has become given practice to use a constant fraction of the plastic power as heat production term in computations, experiments show considerably varying Taylor‐Quinney factors. The presented micromechanically motivated model describes non‐constant and non‐uniform latent energy storage effects. The Taylor‐Quinney factor has been computed for different isotropic hardening laws for illustration. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)