Summary The intergranular strain concept was originally developed to capture the small‐strain behaviour of the soil with hypoplastic models. A change of the deformation direction leads to an increase of the material stiffness. To obtain elastic behaviour for smallstrains, only the elastic part of the material stiffness matrix is used. Two different approaches for an application of this concept to nonhypoplastic models are presented in this article. These approaches differ in the determination of the elastic stress response, which is used for reversible deformations. The first approach determines an elastic response from the original material model, and the second one uses an additional elastic model. Both approaches are applied on barodesy. The simulations are compared with experimental results and with simulations using hypoplastic models with the original intergranular strain concept.

中文翻译：

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表述为速率方程的材料模型的晶间应变概念


摘要 粒间应变概念最初是为了用低塑性模型捕捉土壤的小应变行为而开发的。变形方向的改变导致材料刚度的增加。为了获得小应变的弹性行为，仅使用材料刚度矩阵的弹性部分。本文提出了将此概念应用于非发育不全模型的两种不同方法。这些方法的不同之处在于弹性应力响应的确定，该响应用于可逆变形。第一种方法根据原始材料模型确定弹性响应，第二种方法使用附加弹性模型。这两种方法都适用于Barodesy。将模拟结果与实验结果以及使用具有原始晶间应变概念的亚塑性模型的模拟进行比较。