For the isotropic plastic material, the anisotropic plastic stress fields at a slowly propagating crack tip become the perfectlyplastic stress fields.
对于各向同性塑性材料,缓慢扩展裂纹尖端的各向异性塑性应力场就变成理想塑性应力场。
2
The basic equations with Mohr-Coulomb criterion are solved by the line field analysis method near the joint line in an elastic-perfectlyplastic materials.
通过在节理线上提出合理的边界条件,得出了节理线附近的弹塑性区应力场。
3
The materials are assumed to be rigid-perfectlyplastic. Modified Coulomb failure criteria with tension cut-off are adopted to predict yielding of concrete.