second-order stress effect 二阶应力效应
The second order effects of the whole structure and its members, geometric imperfections and residual stress as well as the feature of semi-rigid connections can be taken into account in this method.
该方法能够考虑结构及构件的二阶效应、几何缺陷和残余应力等多种非线性因素的影响，还可以考虑连接的半刚性性能。
The second kind of these techniques is the ultrasonic impact technique which was used in the welding process in order to reduce the residual tension stress in the welding area of the ship structure.
第二种是超声波冲击技术，用以减少船舶结构中的焊接区域出现的残余应力。
The stress action of second order tectonic stress district shows coherence in a relatively large area. This stress field is controlled by regional block interaction.
二级构造应力区受控于区域块体间的相互作用，在较大区域范围内应力作用具有较强的相关性；
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