Thermo-visco-elasticity with rate-independent plasticity in isotropic materials undergoing thermal expansion
ESAIM: Mathematical Modelling and Numerical Analysis , Tome 45 (2011) no. 3, pp. 477-504.

We consider a viscoelastic solid in Kelvin-Voigt rheology exhibiting also plasticity with hardening and coupled with heat-transfer through dissipative heat production by viscoplastic effects and through thermal expansion and corresponding adiabatic effects. Numerical discretization of the thermodynamically consistent model is proposed by implicit time discretization, suitable regularization, and finite elements in space. Fine a-priori estimates are derived, and convergence is proved by careful successive limit passage. Computational 3D simulations illustrate an implementation of the method as well as physical effects of residual stresses substantially depending on rate of heat treatment.

DOI : 10.1051/m2an/2010063
Classification : 35K85, 49S05, 65M60, 74C05, 80A17
Mots clés : thermodynamics of plasticity, Kelvin-Voigt rheology, hardening, thermal expansion, adiabatic effects, finite element method, implicit time discretization, convergence
@article{M2AN_2011__45_3_477_0,
     author = {Bartels, S\"oren and Roub{\'\i}\v{c}ek, Tom\'a\v{s}},
     title = {Thermo-visco-elasticity with rate-independent plasticity in isotropic materials undergoing thermal expansion},
     journal = {ESAIM: Mathematical Modelling and Numerical Analysis },
     pages = {477--504},
     publisher = {EDP-Sciences},
     volume = {45},
     number = {3},
     year = {2011},
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     mrnumber = {2804647},
     zbl = {1267.74037},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/m2an/2010063/}
}
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Bartels, Sören; Roubíček, Tomáš. Thermo-visco-elasticity with rate-independent plasticity in isotropic materials undergoing thermal expansion. ESAIM: Mathematical Modelling and Numerical Analysis , Tome 45 (2011) no. 3, pp. 477-504. doi : 10.1051/m2an/2010063. http://www.numdam.org/articles/10.1051/m2an/2010063/

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