塑性体积应变
In model 2, the material parameters are independent of the plastic volumetric strain but is related to the temperature change that causes thermal softening, the model is used inside the fault zone.
模型2用来模拟断层物质,其强度只同热状态有关而与塑性变形无关。
Based on the test results of sand, mechanics of internal parameters ( plastic volumetric strain and plastic deviator strain) depending on stress path is explained. General equation expressing hardening parameter independent of stress path is proposed.
在分析砂土试验结果的基础上,揭示了基本硬化内参量(塑性体积应变、塑性剪应变)变化的应力路径相关性,提出了应力路径无关硬化参量的一般表达式。
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