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Thin‐walled profiles are widely used as crash energy absorbers. In this paper thin‐walled square aluminum crash boxes under impact load are studied numerically. ABAQUS commercial software is used for simulating the CBes. The simulated model is validated experimentally using a drop tower test. Folding pattern of a CB has a significant effect on the energy absorption of it. In this study the effects...
The present research is focusing on the better understanding of the behaviour of the re‐entrant auxetic structures subjected to impact loads. Various results like the energy absorption capacity, impact force and force‐displacement curves are predicted by performing numerical simulations in ABAQUS. Furthermore, some comparative studies have been performed on different parameters associated with the...
Conventional crash structures normally use areal folding mechanisms to absorb energy. In this work, we show an alternative design concept by using three dimensional lattice structures. The study shows that the cell parameters of bending and tension dominated unit cells have great influences on the specific energy absorption. For bending dominated cells face‐centred cubic cells with vertical struts...