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| Visco-elastic-plastic uinified constitutive model parameters evaluation |
| Revised:January 19, 2002 |
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| DOI：10.7511/jslx20035114 |
| KeyWord:visco-elastic-plastic,unified constitutive model,parameters evaluation |
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| 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. |
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