同时会产生累积塑性应变。
累积塑性应变能随着加载频率及应力水平的增加而增加，与疲劳寿命在半对数坐标下呈线性关系。
The cumulative plastic strain energy increases with the increase of the loading frequency and stress level, which is linear with fatigue life on semilog coordinate.
在试验的基础上通过引入综合影响参数对试验数据进行归一化，建立饱和软黏土累积塑性应变模型。
Based on the test results, an empirical accumulative plastic strain model is proposed by introducing a comprehensive impact parameter.
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