The strain measurement method of the FBG of the plain strain is proposed based on the plain strain model.

通过平面应变模型，分析了在平面应变状态下光纤光栅的应变测量方法。

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The figures can be divided into three main types, which refer to compression, plain strain, and tension, respectively.

正应力图形和剪应力图形可以分为三种类型，分别对应压缩类变形、平面应变以及拉伸类变形。

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Its efficiency was demonstrated by computing the limit load factor and the collapse state for some plane stress and plain strain problems.

通过计算平面应力和平面应变问题的极限荷载因子和相应的坍塌机构，验证了算法的有效性。

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For others, economic strain, family estrangement, the pressure of others' expectations, overtaxed schedules and plain old exhaustion can mount and crush the happiness out a season that was previously a source of comfort.

CNN: A depressive's guide to Christmas