采用应力释放法模拟盾构法隧道开挖时，合理地确定生成衬砌前的应力释放系数是至关重要的，它对地表变形以及衬砌内力的影响非常明显。
When the method of stress releasing is adopted to model shield-driven, it is very important to determine the coefficient of stress releasing before lining is built.
针对纤维增强复合材料的属性特点，应用坐标系转换原理推导出通孔法测量复合材料残余应力时的应力释放系数公式。
The relieved coefficients during the measurement of the residual stresses in the fiber reinforced composites by the hole drilling method were given with conversion of the two coordinate systems.
本文基于小孔释放法测量残余应力的方法，通过实验研究了交变载荷对焊接残余应力场产生的影响。
Based on the blind-hole method, series of experiments are carried out to analyze the effect of alternate loading to the redistribution of residual stress.
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