Application of twin τ~2 shear yield criterion in plate round hole issue;

Applying micromechanical method to characterize the yield criterion for polysynthetically twinning crystals of TiAl;

Two-parameter parabolic-type yield criterion based on Mohr strength theory;

Updated 5-parameters Barlat-Lian yield criteria;

Effects of anisotropic yield criteria on the prediction of wrinkle during the deep-drawing forming of aluminum alloy sheet;

Barlat'91 yield criteria account for six stress components is adopted to describe the material constitutive behaviors of aluminum alloys.

The authors established a new onedimensional elastic viscoplastic consolidation model based on several theoretic concepts, such as compressibility characteristics of soil, reference state and yield rule of elastic viscoplastic soils, etc.

This paper discussed the necessity and concrete implementary method of the whole stability,analized the sluice foundation with elasticplastic FEM,made general exposition for yield criterions,safe coefficient, foundation load and solution of nonlinear equation group.

All round analyses were made for the influence on computation precision caused by different soil yield criterions, FEM accuracy, slope height, cohesion and friction angle.

This paper presented a comparison of several yield criterions in common use and deduced the substitutive relationship of them.

For the springback problem of sheet metal stretch-bending, a mathematical model was proposed based on Hill’s yielding criterion, exponential hardening and plane strain assumption.

For the springback problems of wide anisotropic metal sheets after large radius pure bending, a mathematical model is proposed based on Hill’s yielding criterion.

A stress-strain constitutive equation of non-linear combined hardening rule was proposed based on non-linear kinematic hardening theory of Lemaitre and Chaboche,isotropic hardening and Mises yielding criterion.