Based on the subroutine VUMAT, user-defined material model in the nonlinear finite element software ABAQUS/EXPLICIT, a nonlinear viscoelastic constitutive model is developed. The validify of the subroutine has been pr...
详细信息
ISBN:
(纸本)9783037852965
Based on the subroutine VUMAT, user-defined material model in the nonlinear finite element 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 finite element softwares which only have 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 finite element softwares.
Basing on the LS-DYNA9703D's user's material coding platform, the user-subroutine is coded, and simulates the dynamic behaviors of the coupled-charge rock caused by the spherical charge blasting when the rock ...
详细信息
ISBN:
(纸本)9783037852033
Basing on the LS-DYNA9703D's user's material coding platform, the user-subroutine is coded, and simulates the dynamic behaviors of the coupled-charge rock caused by the spherical charge blasting when the rock mass is surrounded by high confining pressure. The simulated results and related experimental results are compared. The results show that the modified *** model agrees with the similar test and is suitable for the calculations on the cavity surrounded by high confining pressure, and swelling of the blasting cavity is significantly restricted and relative cavity's radius and ratio of rock mass's strength and confining pressure is nearly linear.
Based on the subroutine VUMAT, user-defined material model in the nonlinear finite element software ABAQUS/EXPLICIT, a nonlinear viscoelastic constitutive model is developedThe validify of the subroutine has been prov...
详细信息
Based on the subroutine VUMAT, user-defined material model in the nonlinear finite element software ABAQUS/EXPLICIT, a nonlinear viscoelastic constitutive model is developedThe validify of the subroutine has been proven through the standard uniaxial tensile modelThe shortage of finite element softwares which only have linear viscoelastic constitutive model is remediedThis paper presents the process of developing a material constitutive model and some useful technologyIt can be referred for extending the material constitutive model in finite element softwares.
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