Experimental, numerical, and multi-objective optimization investigations on the energy absorption features of single- and bi-layer deep-drawn cups. (March 2021)

• Record Type: Journal Article
• Authors: Ghasemabadian, Mohammad A; Kadkhodayan, Mehran; Altenhof, William
• Is Part Of: Proceedings of the Institution of Mechanical Engineers. Volume 235:Number 3(2021)
• Page Start: 550
• Page End: 571
• Publication Date: 2021-03
• Subjects: Crashworthiness features -- single- and bi-layer deep-drawn cups -- energy absorption -- multi-objective optimization; Materials -- Periodicals; Engineering design -- Periodicals; 620.11
• DOI: 10.1177/1464420720972431
• Languages: English
• ISSNs: 1464-4207

Abstract

In this article, the energy absorption features of single- and bi-layer deep-drawn cups (S- and B-cups, respectively) under a quasi-static axial loading are investigated experimentally and numerically. The S-cups were made of 304L stainless steel and explosively welded B-cups were composed of aluminum and 304L stainless steel layers. A multi-objective optimization was performed on specific energy absorption and initial peak force based on the polynomial response surface method. Furthermore, to compare the energy absorption features of deep-drawn cups, two groups of 304L stainless steel tubes (with the same mass or the same height as the S-cups) were axially compressed. The experimental results indicated that the S-cups experienced total energy absorption and mean crush force approximately 24% and 51% greater than those of tubes with the same mass and thickness, respectively. Furthermore, the total efficiency and specific total efficiency of the S-cups were approximately 0.23 and 1.82 times greater than those of tubes with the same height and thickness. Moreover, the energy absorbing effectiveness factor of B-cups was approximately twice of the S-cup.