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首页> 外文期刊>International Journal of Solids and Structures >A systematic procedure for constructing critical state models in three dimensions
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A systematic procedure for constructing critical state models in three dimensions

机译：建立三维临界状态模型的系统程序

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A general procedure for developing constitutive models for frictional materials possessing a critical state is developed in a three-dimensional context. The procedure starts from the laws of thermo-dynamics, so that the first and second laws of thermo-dynamics are automatically satisfied. There is hence no need to invoke any extraneous stability postulates. The models involve a number of parameters, which can be interpreted in terms of micro-mechanical energy storage and dissipative mechanisms. In most cases non-associated flow rules are predicted and in some cases the yield surfaces are seen to have concave segments. The procedure is more general than that traditionally used for materials with non-associated flow rules, in that plastic potentials are not needed and not presumed to exist. In illustration, examples of families of models are given in which the critical state surface is either the Drucker-Prager or the Matsuoka-Nakai cone. (C) 2003 Elsevier Ltd. All rights reserved. [References: 47]
机译：在三维环境中，开发了开发具有临界状态的摩擦材料本构模型的一般程序。该过程从热力学定律开始，以便自动满足热力学的第一定律和第二定律。因此，无需调用任何无关的稳定性假设。该模型涉及许多参数，这些参数可以用微机械能存储和耗散机制来解释。在大多数情况下，可以预测非关联流规则，在某些情况下，可以看到屈服面具有凹形段。该过程比传统上用于具有非关联流规则的材料的过程更通用，因为不需要并且假定不存在可塑性。在说明中，给出了一系列模型的示例，其中临界状态表面是Drucker-Prager或Matsuoka-Nakai锥。 （C）2003 Elsevier Ltd.保留所有权利。 [参考：47]

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