说明：UMAT containting a fully implicit elastic predictor/return-mapping algorithm for numerical integration of von Mises yield criterion-based elastoplastic constitutive equations in 2-D plane stress.

说明：abaqus UMAT mises elastic and plastic constituve model

说明：Material Behaviour of Polycarbonate Abaqus UMAT

说明：Abaqus UMAT for Elastic isotropic hardening materials

说明：Multiple Youngs Modulus Abaqus UMAT

说明：Hyperelastic UMAT for polynomial 1 Abaqus

说明：主要用于金属玻璃损伤模拟程序，基于自由体积开发

说明：This is an Abaqus user material subroutine UMAT in fortran language of a new 3D strain based constitutive model for shape emory alloys developped by Ben Jaber and coauthors in 2008 [1] and improved recently by Ben Jaber 2014 [2] This subroutine in Fortran language allows users to simulate thermomechanical behaviors of SMA products. More details about material parameters and internal variables are availables in The file UMAT_SMA_benjaber_ET_AL_ReadMe.pdf . [1] Ben Jaber M, Smaoui H and Terriault P (2008) Finite element analysis of a shape memory alloy three-dimensional beam based on a finite strain description Smart materials and structures 17(4), 045005. [2] Ben Jaber M (2014) Numerical implementation of a 3D strain-based constitutive model for shape memory alloys under a finite strain description Submitted to Smart materials and structures.

说明：Hock Brown Model Subroutine Umat

说明：abaqus 的umat计算单层复合材料层合板刚度折减和损伤演化

说明：johnson-cook理论的umat程序，此程序可以带入abaqus，然后计算应力

说明：johnson cook的umat子程序。已通过运行

说明：A User Material (UMAT) subroutine that models the deformation of single crystals which undergo plastic deformation

说明：User subroutine UMAT: • can be used to define the mechanical constitutive behavior of a material • will be called at all material calculation points of elements for which the material definition includes a user-defined material behavior

说明：User subroutine UMAT: • can be used to define the mechanical constitutive behavior of a material • will be called at all material calculation points of elements for which the material definition includes a user-defined material behavior

说明：User subroutine UMAT: • can be used to define the mechanical constitutive behavior of a material • will be called at all material calculation points of elements for which the material definition includes a user-defined material behavior

说明：这是一个关于abaqus子程序二次开发的学习程序，其适用于初学umat的同学。

说明：这是一个基于abaqus二次开发的粘弹性边界模型，可以应用于abaqus地震计算的边界处理。

说明：应用于abaqus二次开发，考虑J2流动法则，各向同性硬化，可作为初学者参考。

说明：ls-dyna 用户自定义材料——各向同性线弹性材料

说明：Abaqus Fortran Sourcecode Abaqus Fortran Sourcecode Abaqus Fortran Sourcecode

说明：Abaqus Fortran Sourcecode Abaqus Fortran Sourcecode Abaqus Fortran Sourcecode

说明：Abaqus Fortran Sourcecode Abaqus Fortran Sourcecode Abaqus Fortran Sourcecode

说明：Abaqus Fortran Sourcecode Abaqus Fortran SourcecodeAbaqus Fortran Sourcecode

说明：Abaqus Fortran Sourcecode Abaqus Fortran Sourcecode Abaqus Fortran Sourcecode

说明：Multiaxial UMAT CREEP subroutine for ABAQUS

说明：This UMAT program is a very good material for beginners in learning how to form Jacobin Matrix, how to update stress, etc.

说明：Abaqus UMAT用户自定义材料子程序，三维实体模型的单轴拉伸实验

说明：粘弹性模型三元模型umat子程序，包括abaqus用户手册中的程序例子以及编写的程序代码和对应的inp文件

说明：abaqus umat 用户子程序开发。动力显式模拟。完全编码加解释。