Theoretical analysis on carbon fiber reinforced aluminum laminate under off-center impact

B Lu, J Zhang, D Zheng, J Xie, L Zhang - International Journal of …, 2023 - Elsevier
B Lu, J Zhang, D Zheng, J Xie, L Zhang
International Journal of Mechanical Sciences, 2023Elsevier
Carbon fiber reinforced aluminum laminate (CARALL) composed of multi-layer CFRP and
aluminum has better toughness and impact resistance than composite laminates due to the
existence of metal. This work investigates the energy absorption mechanism and creatively
proposes a theoretical analysis model to predict the dynamic response of CARALL under off-
center impact. Firstly, based on a simplified ideal rigid-plastic material model, a unified yield
criterion and its simplified method for hybrid plastic hinges are proposed. Then, the …
Abstract
Carbon fiber reinforced aluminum laminate (CARALL) composed of multi-layer CFRP and aluminum has better toughness and impact resistance than composite laminates due to the existence of metal. This work investigates the energy absorption mechanism and creatively proposes a theoretical analysis model to predict the dynamic response of CARALL under off-center impact. Firstly, based on a simplified ideal rigid-plastic material model, a unified yield criterion and its simplified method for hybrid plastic hinges are proposed. Then, the analytical solution for maximum transverse displacement and impact force of CARALL under off-center impact is established. Finally, it is verified by the simulation and discussed in detail. The results show that the established theoretical method can predict the structural response under low-velocity impact.
Elsevier
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