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VUMAT of a Generalized Standard Continuum Damage Model
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13 Apr 2018 | | Contributor(s):: Zhenyuan Gao, Liang Zhang, Wenbin Yu
Based on a recently developed generalized standard continuum damage model (CDM), this VUMAT user subroutine provides a rigorous and robust framework for implementing various damage behavior into 2D or 3D solid elements in a finite element analysis (FEA). It is designed to be used with...
Woven fabrics UMAT- a coupled material model
02 Aug 2017 | | Contributor(s):: Masoud Haghi Kashani, Masoud Hejazi, Abbas Hosseini, Farrokh Sassani, Frank Ko, Abbas S. Milani
One of the advantages of woven fabrics over unidirectional prepregs is their superior formability thanks to the large shear deformation capability. There exists, however, a limit on the shear deformation of woven fabrics, namely the wrinkling. Applying tension to delay wrinkling during forming...
Puck Failure Criteria
31 Jul 2017 | | Contributor(s):: karan kodagali
Composite materials have been established as competitive materials during the last few decades due to their high strength to l ow weight ratio among other advantages and are widely used in many industries. A recent study has found that the industrial usage of composite failure...