Design for Crashworthiness of Vehicle Structures Using an Extended Hybrid Cellular Automaton Method

2019-01-0842

04/02/2019

Event
WCX SAE World Congress Experience
Authors Abstract
Content
This paper introduces a design methodology to tailor the acceleration and displacement responses of a vehicle structure subjected to a dynamic crushing load. The proposed approach is an extension of the hybrid cellular automaton (HCA) method, through which the internal energy density is uniformly distributed within the structure. The proposed approach, referred here to as an extended HCA (xHCA) method, receives the suitable combinations of volume fraction and a finite element meta-parameter for which the algorithm synthesizes the load paths that allow the desired crash response. Lower meta-parameter values lead designs obtained by traditional optimizers, while larger values lead to designs obtained by the HCA method. Simultaneous implementation of multiple values of meta-parameters is presented here as a further development of xHCA method. Numerical examples of vehicle components under the side and the frontal impact are demonstrated to assess the xHCA capabilities of tailoring the crash responses.
Meta TagsDetails
DOI
https://doi.org/10.4271/2019-01-0842
Pages
10
Citation
Raeisi, S., Tapkir, P., Tovar, A., Mozumder, C. et al., "Design for Crashworthiness of Vehicle Structures Using an Extended Hybrid Cellular Automaton Method," SAE Technical Paper 2019-01-0842, 2019, https://doi.org/10.4271/2019-01-0842.
Additional Details
Publisher
Published
Apr 2, 2019
Product Code
2019-01-0842
Content Type
Technical Paper
Language
English