基于ABAQUS的白砂岩损伤的本构模型的二次开发

Secondary Development of a Constitutive Model of White Sandstone Damage Based on ABAKURS

ABAQUS有限元分析软件在岩土力学方面的功能很强大,但是ABAQUS软件的材料库中没有白砂岩酸性条件下不同干湿循环处理下的本构模型,因此论文将在ABAQUS的平台上对此模型进行二次开发,将模型编译成UMAT子程序,并对子程序进行验证。通过UMAT二次开发的子程序进行的模拟结果与实际试验的数据对比。

ABAQUS finite element analysis software has a strong function in geomechanics,but the material library of ABAQUS software does not have a constitutive model under different dry and wet cycle treatments under acidic conditions of white sandstone,so this paper will re-develop this model on the ABAQUS platform,compile the model into a UMAAT subroutine,and verify the subroutine.The results of the simulation conducted by the subroutine developed by UMAT are compared with the data of the actual test.