Bending crashworthiness of thin-walled square tubes with multi-cell and double-tube cross-sections

For structural bending crashworthiness, previous studies mostly focused on thin-walled tubes with multi-cell cross-sections, while the double-tube configuration was seldom studied. In this paper, the bending crashworthiness of thin-walled tubes with multi-cell and double-tube configurations was comp...

Full description

Saved in:
Bibliographic Details
Published in:Journal of mechanical science and technology 2021, 35(11), , pp.4815-4823
Main Authors: Xie, Z. Y., Zhao, Z. X., Li, C.
Format: Article
Language:English
Subjects:
Configurations
Control
Crashworthiness
Cross-sections
Dynamical Systems
Energy absorption
Engineering
Finite element method
Impact strength
Industrial and Production Engineering
Mechanical Engineering
Original Article
Tubes
Vibration
기계공학
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:For structural bending crashworthiness, previous studies mostly focused on thin-walled tubes with multi-cell cross-sections, while the double-tube configuration was seldom studied. In this paper, the bending crashworthiness of thin-walled tubes with multi-cell and double-tube configurations was compared based on three-point bending tests conducted using the ABAQUS/Explicit code. The numerical results reveal that the reinforcements significantly improve the bending crashworthiness beyond the conventional empty tube according to the two indicators: specific energy absorption ( SEA ) and crash load efficiency ( CLE ). For the ratio of cross-sectional width to wall thickness b / t = 100, the double-tube configuration has a similar bending crashworthiness performance to the multi-cell configuration. The asymmetric multi-cell configurations are found to demonstrate more excellent SEA performance than their symmetric counterparts in most cases. For the case b / t = 50, the double-tube configuration significantly prevails over the multi-cell configuration.
ISSN:1738-494X
1976-3824
DOI:10.1007/s12206-021-1001-6