Efficient modeling of panel-like structures in perforation simulations |
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Authors: | Junyan GuoYuyong Wang Chun Lu |
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Affiliation: | Institute of High Performance Computing, 1 Science Park Road, #01-01 The Capricorn, Singapore Science Park II, 117528 Singapore, Singapore |
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Abstract: | This paper presents results of numerical simulations for impact effects in panel-like structures using solid and shell element modeling techniques. Three examples from experiments in literature have been numerically analyzed. The nonlinear transient dynamic analysis code, LS-DYNA is used in the simulations to model projectiles and panel-like targets. It is found that models established for panel-like targets using solid shell elements cannot only save significant computational effort, but also produce good results as long as the panel-like targets satisfy certain conditions. A criterion that governs the validity of modeling panel-like targets with shell elements is proposed in the paper. |
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Keywords: | Finite element modeling Impact effects Perforation simulation Panel-like structures Solid shell element LS-DYNA |
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