Furthermore, the influence of the residual stress to the surface strain of the material in the elastic zone is studied.

进而探讨了残余应力对弹性区材料表面应变释放的影响。

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The study results show that the stresses in elastic zone are related with the vertical geostress, but the stresses in plastic zone are opposite.

研究结果表明，弹性区内任一点的应力大小与垂直地应力有关，而塑性区内任一点的应力与原始垂直地应力无关；

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For the specific problems of tracing the interface between plastic and elastic zone, a weighted parameter mesh refinement criterion is presented.

针对跟踪塑性区交界面这一具体问题， 采用了加权参数网格加密准则；

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