Drill string receives the complicated stress which is tension-compression stress, torsion stress, bending stress, etc.
在长期工作中，钻具承受拉伸、压缩、弯曲和扭转等复杂应力。
The thermal residual stress gives rise to the differences between tension and compression behaviors of the composites.
同时。热残余应力是导致复合材料拉、压机械性能不同的主要原因。
Shear band formation due to void nucleation and growth were successfully simulated in a specimen of geomaterial under plane stress compression and tension by the model respectively.
采用该模型，成功地对平面应力条件下岩土材料单轴受压和单轴受拉试件的局部化破坏分别进行了数值模拟。
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