论文标题
弹性材料中不完全破坏损害的有限晶体模型
A finite-strain model for incomplete damage in elastoplastic materials
论文作者
论文摘要
我们讲述了一个三维模型，能够描述有限菌株的固体中的耦合损伤和塑性效应。本构模型在{\ it概括性标准材料}的变异环境中配制，是由保守和耗散力平衡的。材料响应是与速率无关的，并且损伤演化是单向的。我们评估单轴和非比例双轴测试的模型特征和性能。 然后将本构模型与准静态平衡系统以及初始和边界条件相辅相成。我们借助强大的多物理有限元软件NetGen/ngsolve生成数值模拟。我们显示了在边界条件的不同选择以及可能存在预损害区域的不同选择下，实施和运行模拟的灵活性和运行模拟的灵活性。
We address a three-dimensional model capable of describing coupled damage and plastic effects in solids at finite strains. Formulated within the variational setting of {\it generalized standard materials}, the constitutive model results from the balance of conservative and dissipative forces. Material response is rate-independent and associative and damage evolution is unidirectional. We assess the model features and performance on both uniaxial and non-proportional biaxial tests. The constitutive model is then complemented with the quasistatic equilibrium system and initial and boundary conditions. We produce numerical simulations with the help of the powerful multiphysics finite element software NETGEN/NGSolve. We show the flexibility of the implementation and run simulations for various 2D and 3D settings under different choices of boundary conditions and possibly in presence of pre-damaged regions.
