Applied Mathematics and Mechanics (English Edition) ›› 2013, Vol. 34 ›› Issue (11): 1361-1372.doi: https://doi.org/10.1007/s10483-013-1751-6

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Variational analysis of thermomechanically coupled steady-state rolling problem

T. A. ANGELOV   

  1. Institute of Mechanics, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
  • 收稿日期:2012-05-14 修回日期:2013-04-27 出版日期:2013-11-03 发布日期:2013-11-01

Variational analysis of thermomechanically coupled steady-state rolling problem

T. A. ANGELOV   

  1. Institute of Mechanics, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
  • Received:2012-05-14 Revised:2013-04-27 Online:2013-11-03 Published:2013-11-01

摘要: A steady-state, rigid-plastic rolling problem for temperature and strain-rate dependent materials with nonlocal friction is considered. A variational formulation is derived, coupling a nonlinear variational inequality for the velocity and a nonlinear variational equation for the temperature. The existence and uniqueness results are obtained by a proposed fixed point method.

关键词: steady-state rolling, rigid-thermoviscoplastic material, nonlocal friction, fixed point method, variational analysis

Abstract: A steady-state, rigid-plastic rolling problem for temperature and strain-rate dependent materials with nonlocal friction is considered. A variational formulation is derived, coupling a nonlinear variational inequality for the velocity and a nonlinear variational equation for the temperature. The existence and uniqueness results are obtained by a proposed fixed point method.

Key words: particle dispersion, high Reynolds number, discrete vortex method (DVM), liquid-particle, wake vortex, steady-state rolling, rigid-thermoviscoplastic material, nonlocal friction, fixed point method, variational analysis

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