• Media type: Text; E-Book; Report
  • Title: Temperature-Dependent Hysteresis in One-Dimensional Thermovisco-Elastoplasticity
  • Contributor: Krejčí, Pavel [Author]; Sprekels, Jürgen [Author]
  • imprint: Weierstrass Institute for Applied Analysis and Stochastics publication server, 1997
  • Language: English
  • DOI: https://doi.org/10.20347/WIAS.PREPRINT.344
  • Keywords: 35G25 ; article ; 74A20 ; 74A15 ; 74C10 ; Thermoplasticity -- viscoelasticity -- hysteresis -- Prandtl-Ishlinskii operator -- PDEs with hysteresis -- thermodynamical consistency
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  • Description: In this paper, we develop a thermodynamically consistent description of the uniaxial behavior of thermovisco-elastoplastic materials for which the total stress σ contains, in addition to elastic, viscous and thermic contributions, a plastic component σp of the form σp(x,t) = P[ε,θ(x,t)](x,t). Here, ε and θ are the fields of strain and absolute temperature, respectively, and {P[·,θ]}θ>0 denotes a family of (rate-independent) hysteresis operators of Prandtl-Ishlinskii type, parametrized by the absolute temperature. The system of momentum and energy balance equations governing the space-time evolution of the material form a system of two highly nonlinearly coupled partial differential equations involving partial derivatives of hysteretic nonlinearities at different places. It is shown that an initial-boundary value problem for this system admits a unique global strong solution which depends continuously on the data.