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- W4372204693 abstract "Numerical simulation is becoming an increasingly important tool in the development of crash components in the automotive industry. With accurate numerical predictions of deformation and fracture, developers may be able to optimize and utilize the energy absorption capacity of the material to its full potential. This study aims to predict the crash behaviour of such components from previous experiments by Qvale et al. (2021) using explicit finite element simulations with a fine discretization of solid elements and the Gurson–Tvergaard–Needleman porous plasticity model. How well the experimental behaviour was predicted by the simulations was evaluated through comparison to computed tomography (CT) scans throughout the entire volume of the profiles. Despite the pragmatic approach of calibrating some parameters of the constitutive model to only uniaxial tension tests, and obtaining the remaining parameters from the literature, important features, such as local details of the folding pattern and the locations of fracture initiation, were represented remarkably well, while there is still room for improvement in the dynamic simulations, as the changes from quasi-static to dynamic axial crushing were slightly underestimated." @default.
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- W4372204693 date "2023-10-01" @default.
- W4372204693 modified "2023-09-26" @default.
- W4372204693 title "Micromechanics-based simulation of quasi-static and dynamic crushing of double-chamber 6000-series aluminium profiles" @default.
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- W4372204693 doi "https://doi.org/10.1016/j.ijimpeng.2023.104636" @default.
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