当应力超过比例极限后，采用了有效模量值。
In the theoreitical analysis, the effective modulus E was used for the stresses which exceed the proportional limit.
通过两个大比例模型试验，研究了单拱面预应力混凝土系杆拱桥面内、面外稳定极限承载力及其影响因素。
Through two great model tests, this paper investigates the ultimate bearing capacity and its influence factor of the inside and outside face of prestressed concrete tied arch bridge with single arch.
工程上很多结构如钢筋混凝土结构、应力超过比例极限后的钢结构，都具有非线性特性。
Most of engineering structures such as reinforced concrete structures, steel structures in which some stresses are beyond elastic limit, are possessed of nonlinear characteristics.
摘要单向拉伸试验中，在比例极限内，应力应变关系服从胡克定律。
In simple tension experiment, the stress-strain relationship submits Hook's law within the limit of proportionality.
复合材料低的比例极限可由晶须端部应力集中所导致的低应力局部塑性变形来解释。
The low proportional limit may be explained by localized plastic deformation under low macroscopic stress caused by stress concentrations at the ends of SiC whiskers.
单向拉伸试验中，在比例极限内，应力应变关系服从。
In simple tension experiment, the stress-strain relationship submits Hook's law within the limit of proportionality.
单向拉伸试验中，在比例极限内，应力应变关系服从。
In simple tension experiment, the stress-strain relationship submits Hook's law within the limit of proportionality.
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