Modeling damage and deformation in impact simulations

Deformation mechanisms and damage in -alumina under hypervelocity impact loading

impact loading Cheng Zhang, Rajiv K. Kalia, Aiichiro Nakano, Priya Vashishta, and Paulo S. Branicio Collaboratory for Advanced Computing and Simulations, Department of Chemical Engineering and Materials Science, Department of Physics and Astronomy, and Department of Computer Science, University of Southern California, Los Angeles, California 90089-0242, USA Departmento de Física, Universidade F...

Modeling Impact Damage in Laminated Composite Plates

The simulation of impact damage in laminated composite plates presents many challengesto modelers. Local failure takes the form of various fracture processes. For compositesthis is further complicated because the various modes can strongly interact with each other.Another modeling challenge particular to composite materials is that it is often necessaryto simulate the struct...

Plastic Deformation Characteristics of Continuous Confined Strip Shearing Process Considering the Deformation Homogeneity and Damage Accumulation

In the present investigation, two dimensional elastoplastic finite element analysis was conducted to assess the deformation characteristics of Al 1100 alloy during continuous confined strip shearing (C2S2) process. The results of simulations showed that the plastic strain distribution across the deformed sample is non-uniform irrespective of the amount of friction and C2S2 die angle. The most u...

Continuum Multiscale Modeling of Finite Deformation Plasticity and Anisotropic Damage in Polycrystals

A framework for describing the deformation and failure responses of multi-phase polycrystalline microstructures is developed from micromechanical considerations and volume averaging techniques. Contributions from damage (i.e., displacement discontinuities such as cracks, voids, and shear bands) are captured explicitly in the framework’s kinematics and balance relations through additive decompos...

Modeling of impact damage of sewing machine needle on woven fabric by finite element method