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Showing 1 to 6 of 6 for “"VUMAT"”.
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On the modeling of rolling: a special look at edge cracking
… in automatic mass scaling scheme. A subroutine (VUMAT) was developed to provide for rate dependent elasto-viscoplastic response and evolution of damage. Results of the model and damage are presented for differing lay-on temperatures, width to thickness ratios, edge shapes, frictional values, and …
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Simulation of low-velocity impact damage in sandwich composites
… ABAQUS/Explicit through user-defined subroutines VUMAT. Numerical simulations were assessed and validated by a series of experimental analyses carried out through low-velocity impact tests (using drop-weight testing machine) and damage calibration tests (using X-radiography, Ultrasonics and …
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Optimal Blast-Resistant Sandwich Structures with Transversely Isotropic, Elasto-plastic Polymeric Foams as Cores
… The material model is implemented as a VUMAT (user defined) subroutine in the commercial finite element software ABAQUS Explicit. We show that the model works robustly in uniaxial deformations as well as in sandwich problems using the test data available in the literature. We provide …
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Damage and repair evolution of cold formed linepipe steel
… in a commercial FE solver (ABAQUS) using the VUMAT user-subroutine. The numerical results reproduce the essential features of necking phenomena and provide a physical insight into damage evolution within a tensile testpiece under given necking conditions. Dual phase steel is of greater …
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Physics and Chemistry Based Constitutive Framework for Thermo-Chemo-Mechanical Responses of Polymeric Materials
… user-element and user-material subroutines (UEL, VUMAT) to investigate the predictive capabilities of the developed frameworks in describing complex loading configurations including fracture. The developed constitutive frameworks are all thermodynamics-based and rely solely on the outputs obtained …