屈服曲线指的是一种是具有明显的屈服平台的曲线，通常规定的屈服强度指标为下屈服点。
就屈服值区分了两种取值方法，并确定出两类屈服点和两类屈服曲线。
According to yield-strength, the two different arriving approaches were distinguished, and two different kinds of yield-point and yield-curve were determined.
同时，提出了岩体材料屈服后的包络型软化曲线，为岩体材料的非线性计算提出了完整的计算模型。
The envelopes of softening curves for post yielding of rock mass materials are also presented to give the complete computational model.
本文对表面微观屈服应力的测量与计算方法及表面变形的应力应变曲线进行了分析研究。
The calculation of micro-yield stress in surface layer and the stress-strain curves of surface layer deformation were studied.
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