Volume 11, Issue 1 (3-2021)                   ASE 2021, 11(1): 3534-3546 | Back to browse issues page

XML Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Pirmohammad S, Esmaeili Marzdashti S, Vosoghifard E. Effect of hole shapes and dimensions on the crushing performance of octagonal multi-cell columns. ASE 2021; 11 (1) :3534-3546
URL: http://www.iust.ac.ir/ijae/article-1-433-en.html
Mechanical Engineering Department, Faculty of Engineering, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran.
Abstract:   (6445 Views)
Thin-walled columns are frequently employed in vehicle structures to diminish the damages resulting from vehicle collisions. In this research, the effect of hole shapes and dimensions on crushing behavior of octagonal multi-cell columns subjected to longitudinal loading is studied. Rectangular, hexagonal and elliptical holes are assumed on the octagonal multi-cell columns, and crushing parameters (i.e. specific energy absorption SEA and maximum crushing force Fmax) are then obtained by performing numerical analyses in LS-DYNA. The results demonstrate that creation of holes on column walls improve crushing capability significantly, such that creation of rectangular, hexagonal and elliptical holes on the octagonal multi-cell columns increases the value of SEA by 37%, 42% and 39%, respectively in comparison to the plain octagonal column. On the other hand, presence of holes on the octagonal columns results in reduction of Fmax (as a negative crushing indicator).

Full-Text [PDF 707 kb]   (5502 Downloads)    
Type of Study: Research | Subject: Body structure

Add your comments about this article : Your username or Email:

Send email to the article author

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2022 All Rights Reserved | Automotive Science and Engineering

Designed & Developed by : Yektaweb