Topometry optimisation for crashworthiness design using hybrid cellular automata
by Chandan Mozumder; John E. Renaud; Andrés Tovar
International Journal of Vehicle Design (IJVD), Vol. 60, No. 1/2, 2012

Abstract: An objective in crashworthiness design is to obtain energy-absorbing components. This task has been efficiently undertaken using the Hybrid Cellular Automaton method. This method combines the CA paradigm with nonlinear, dynamic finite element analysis. Lightweight, energy-absorbing topology concepts have been obtained with this approach. This paper furthers the development of the HCA method to an efficient tool for synthesising shell structures using topometry optimisation. The objective is to find the thickness distribution that uniformly distributes the structures internal energy density. This approach addresses problems involving collisions, large displacement and material plastic hardening. The final designs meet manufacturing and performance constraints.

Online publication date: Tue, 23-Apr-2013

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