运用弹性力学与塑性力学理论，对常用弯管工艺过程进行受力分析。
The force with process of bending pipe has been quantitatively and qualitatively analyzed in the theories of elasticity mechanics and plasticity mechanics.
本文运用弹性力学和物理学对上述各因素进行综合研究，导出衬套孔加工尺寸修正公式。
These factors are studied comprehensively by means of the elastic mechanics and physics in this paper and, the correction formular of machining dimension for bush hole is derived.
运用弹性力学理论对该方法进行了详细推导，为厚板内部残余应力测试提供了一条新途径。
The new measurement theory is deduced in detail by using elasticity theory. A new approach is provided to measure the residual stress in the thick plate.
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