基于单轴应变疲劳分析，提出了比例加载多轴应力状态下的疲劳寿命计算方法。
Based on the local strain method of the single axle stress condition method, the multi axial stress condition computing method of the proportional loading is presented.
针对混凝土多轴应力状态下各向异性损伤的特点，建立了各向异性弹塑性损伤模型。
In view of the anisotropic damage characteristics of concrete under multiaxial stress state, an anisotropic elastoplastic damage model is presented.
本文对局部法作了一些改进，例如引进了由局部多轴应力状态引起的流变障碍及应力梯度的影响。
In this paper new ideas and improvements to the local approach are introduced, for instance yield locking by locally multi axial stress state and the effects of the stress gradient.
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