For the safety evaluation of electric vehicle battery packs, crush testing is a mandatory certification test stipulated by international standards. However, it's challenging to cover numerous test conditions in physical crush tests, making it difficult to identify the causal relationship between test results and structural improvements, and to find optimal conditions for desired outcomes. Therefore, numerical simulations are indispensable for efficient parametric analysis. In this study, we developed a crush test simulator using FrontISTR, a large-scale parallel structural analysis software that offers both scalability and customizability. This simulator successfully reproduced the deforming behavior of battery packs, involving contact, large deformation, and material nonlinearity. The validity of the obtained analysis results was confirmed through comparison and good agreement with measured data and analysis results obtained from LS-DYNA.
HAYASHI et al. (Wed,) studied this question.