彭云. 基于ABAQUS的非线性粘弹性本构模型二次开发[J]. 南昌航空大学学报(自然科学版), 2011, 25(2): 38-41,92.
引用本文: 彭云. 基于ABAQUS的非线性粘弹性本构模型二次开发[J]. 南昌航空大学学报(自然科学版), 2011, 25(2): 38-41,92.
shu
PENG Yun. Developing of Nonlinear Viscoelastic Constitutive Model Based on ABAQUS[J]. Journal of nanchang hangkong university(Natural science edition), 2011, 25(2): 38-41,92.
Citation: PENG Yun. Developing of Nonlinear Viscoelastic Constitutive Model Based on ABAQUS[J]. Journal of nanchang hangkong university(Natural science edition), 2011, 25(2): 38-41,92.
shu

基于ABAQUS的非线性粘弹性本构模型二次开发

Developing of Nonlinear Viscoelastic Constitutive Model Based on ABAQUS

    摘要
  • 摘要: 基于大型非线性有限元软件ABAQUS/EXPLICIT所提供的用户材料子程序接口VUMAT,对非线性粘弹性本构模型进行二次开发.通过标准犬骨单轴拉伸算例,验证了子程序的有效性,弥补了ABAQUS仅含线性粘弹性本构模型的不足.文中详述了材料子程序开发流程,探讨了涉及的诸多实用技术,可为用户扩充ABAQUS的材料模型提供参考.

     

    Abstract: Based on the subroutine VUMAT,user-defined material model in the nonlinear FEM software ABAQUS/EXPLICIT,a nonlinear viscoelastic constitutive model is developed.The validify of the subroutine has been proven through the standard uniaxial tensile model.The shortage of ABAQUS which only has linear viscoelastic constitutive model is remedied.This paper presents the process of developing a material constitutive model and some useful technology.It can be referred for extending the material constitutive model in ABAQUS.

     

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