研究了考虑结构性丧失和硬化的结构土屈服面函数、流动法则、硬化规律和弹性规律等，构建了一个结构土的弹塑性本构模型。
After researching of the yielding function, suitable flow rule and harden law and elastic law of structured soil, a structured soil constituted model has been proposed.
通过定义接触面滑动屈服函数和流动势函数，得出了热接触边界的互补方程。
Through defining slide yield function and floating potential function of thermo-contact surface, the complementary equation of thermo-contact boundary was got.
为使模糊屈服面明朗化，文中引入了与模糊集截集相应的模糊屈服函数族。并巧妙地将隶属函数和屈服函数联系起来。
Fuzzy yield functions corresponding to he cut-set of fuzzy sets are introduced for the obviousness of fuzzy yield surface, and the membership function is ingeniously related with yield function.
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