Visco-elastic-plastic uinified constitutive model parameters evaluation
  Revised:January 19, 2002
View Full Text  View/Add Comment  Download reader
DOI:10.7511/jslx20035114
KeyWord:visco-elastic-plastic,unified constitutive model,parameters evaluation
Hits: 823
Download times: 8
Abstract:
      Because the traditional parameters evaluation has drawbacks and there are many parameters in the visco elastic plastic unified constitutive model, a parameters correlation evaluation method is drawn out in this paper. The optimized parameters of the visco elastic plastic unified constitutive model is obtained by a nonlinear optimization algorithm and relative sensitivities analysis. The method is used to estimate the visco elastic plastic unified constitutive model's parameters of braze alloys experiments in different constant strain rate. It shows the method is rational and effective.