In this paper, we present two software packages, HexGen and Hex2Spline, that seamlessly integrate geometry design with isogeometric analysis (IGA) in LS-DYNA. Given a boundary representation of solid model, creates hexahedral mesh by utilizing semi-automatic polycube-based generation method. Hex2Spline takes the output from as input control constructs volumetric truncated hierarchical splines. ...

This paper reports on the results of a numerical study to simulate response carbon fibre reinforced polymer (CFRP) retrofitted steel plates applied blast loads using finite element software, LS-DYNA. The simulation were validated against plate and magnitude deformation obtained from previous experiments. uniform load was generated in experiment by detonating cylindrical charge down end square t...

This study investigates the lateral impact responses of reinforced concrete (RC) and composite columns through dynamic nonlinear analysis using LS-DYNA. The simulation results were first validated against experimental performed earlier on four different cross sections. finite element show that LS-DYNA can predict well be used for further parametric analysis. overall resistance new is significan...

Collisions between rail transit vehicles are unavoidable. In order to alleviate the disaster caused by collision, energy-absorbing and shock-absorbing materials generally installed at front end of vehicle. this paper, a variable buffer-force planing device for was prepared. The buffer force changed length (Dx), angle (A) thickness (W). First, we manufactured one type material, data were obtaine...

A wide range of composite material forms are finding use in today’s aerospace, automotive, and other transportation industry segments. The Boeing 787 commercial airliner, unveiled in 2007, features over 50% carbon fiber composites by structural weight, while the entire structure of the Lamborghini Sesto Elemento supercar, unveiled in 2011, is made exclusively from carbon fiber composites [1-2]....