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采用三维八结点等参元的有限元数值分析方法，对静载压痕残余应力测量的力学模型进行了简化，对其弹塑性变形过程进行了理论分析．结果表明，在一定的试验条件下，测点的轴向应变增量与其所受轴向应力间存在良好的线性关系，同时对试验参数进行了优化．
The finite element numerical analysis method of three-dimensional and eight-node isoparametric element is adopted to simplify the mechanics model of residual stress measurement of static load indentation. The elastic-plastic deformation process is theoretically analyzed. The results show that there is a good linear relationship between the measured axial strain increment and the axial stress at a certain test condition, and the experimental parameters are optimized at the same time.