In:
MATEC Web of Conferences, EDP Sciences, Vol. 252 ( 2019), p. 07005-
Abstract:
The study of bending behaviour of thin-walled structures has gained importance since lateral impact is the second most common scenario in automobile crashes. The current paper analyses an effect of partition plates on energy absorption (E a ) of circular profiles under lateral loads. For this purpose, several numerical analyses using Abaqus/Explicit finite element software were carried out. The evaluated specimens have circular cross-sections reinforced by different arrangement of partition plates. In order to get reliable outcome, special emphasis was placed on damage modelling by Johnson-Cook failure model for aluminium. From the results considering a single profile, better E a was registered for structures with plates in a range from 6% to 34%. Reduction in peak load (P max ) up to 13% and an increase in crush force efficiency (CFE) in 14.86% was also computed. Regarding profiles with plates, it was determined that crashworthiness performance depends on an arrangement of plates on the cross-section more than their thickness and number. Better performance was obtained when the circular cross-section was reinforced in the longitudinal and transversal direction by 4 plates.
Type of Medium:
Online Resource
ISSN:
2261-236X
DOI:
10.1051/matecconf/201925207005
Language:
English
Publisher:
EDP Sciences
Publication Date:
2019
detail.hit.zdb_id:
2673602-0