A study is carried out to investigate the effects of the major modeling and simulation features of the commercial Finite Element (FE) codes and its direct impact on the simulation accuracy and computational efficiency when solving crash problems. The four major parameters considered include element size/mesh density, shell element formulations, hourglass control form, and integration time step strategy. An intensive parametric study is conducted through FE simulations for quasi-static crush of a simple box beam. The nonlinear, dynamic, explicit FE code, LS-DYNA is used to perform the parametric study. The accuracy of the FE simulations are measured by comparing the simulation results with experimental test results conducted, in the literature, for the same box beam.
Major parameters affecting nonlinear finite element simulations of vehicle crashes
1999
17 Seiten, 6 Quellen
Aufsatz (Konferenz)
Englisch
Major Parameters Affecting Nonlinear Finite Element Simulations of Vehicle Crashes
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