Stochastic equations of rigid-thermo-viscoplasticity in metal forming process

被引:14
作者
Grzywinski, M [1 ]
Sluzalec, A [1 ]
机构
[1] Czestochowa Tech Univ, PL-42200 Czestochowa, Poland
关键词
D O I
10.1016/S0020-7225(01)00080-5
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Stochastic rigid-thermo-viscoplastic metal forming process is described and discussed. The theoretical formulation for stochastic equations in rigid-thermo-viscoplasticity is presented. It is based on the combination of the second-order perturbation technique and second-moment analysis. The principle allows incorporation of system uncertainties into finite-element equations. Probabilistic distributions for temperatures and strains taking into account random initial and boundary conditions are given. Example of stochastic analysis in shell nosing process is shown. (C) 2002 Elsevier Science Ltd. All rights reserved.
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页码:367 / 383
页数:17
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