Hydrostatic, deviatoric, and external field-driven irreversible dissipations have generally been modeled by separated models. However, since all the irreversible dissipations are governed by the laws of thermodynamics, it is possible to describe the coupled multi-irreversible dissipations with a general model. This paper presents a modeling structure of inelastic potential for coupled multi-irreversible dissipation conditions based on the thermodynamic laws. The inelastic potential is derived from a proposed inelastic dissipation function, and the scalar rates of irreversible deformation are formulated to consider the coupled effect of irreversible hydrostatic deformation, deviatoric deformation, and field-driven internal response. In this paper, the inelastic potential model is discussed with visualized potential surfaces, and some numerical examples are conducted to test the model in several conditions. In addition, the model is applied to three practical engineering problems. The results of this paper show that this model can be used as a general model to simulate individual irreversible dissipation as well as the coupled multi-irreversible phenomena.

流体静力、偏量和外部场驱动的不可逆耗散通常由单独的模型建模。然而，由于所有不可逆耗散都受热力学定律支配，因此可以用一般模型来描述耦合的多重不可逆耗散。本文提出了一种基于热力学定律的耦合多重不可逆耗散条件的非弹性势建模结构。非弹性势从提议的非弹性耗散函数导出，并且不可逆变形的标量速率被公式化以考虑不可逆静水变形、偏变形和场驱动的内部响应的耦合效应。在本文中，非弹性势模型讨论了可视化势面，并通过数值算例对模型在多种条件下进行了测试。此外，该模型还应用于三个实际工程问题。本文的结果表明，该模型可以作为通用模型来模拟单个不可逆耗散以及耦合的多重不可逆现象。