对于塑性变形和蠕变而言，理论假 设上只发生了剪切变形（shear deformation ）, 没有体积变形（Volumetric deformation），也就是通常所说的说材料塑性是不可压缩的。
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In order to calculate the autogenous volume deformation according to actual temperature change, the paper introduces a new "equivalent age" method, and the Optimization study on hydrograph of autogenous volume deformation is also disscused.
对于实际温度变化过程中MgO混凝土的自生体积变形计算问题,提出了新的“等效龄期”方法,同时对自生体积变形过程线进行了优化研究。
参考来源 - 大体积混凝土温度场温度应力仿真分析·2,447,543篇论文数据，部分数据来源于NoteExpress
计算中考虑了温度荷载、自重、静水压力、混凝土徐变和自生体积变形等情况。
In the computation of stress field, the factors, such as temperature load, deadweight of concrete, water potential, creep stress and self expansion of concrete, are involved in the program.
为避免盐渍土在固化过程中可能发生的体积变形危害，研究其自生体积稳定性。
The autogenous volumetric stability of solidified saline soils was investigated to prevent damage to roads caused by volume changes of the road foundations.
提出了密封试样细管排液的体积变形测定方法，该方法可测定水泥石自初凝起的收缩。
A new method of volumetric deformation measurement is proposed, which can measure the shrinkage of cement paste from initial setting.
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