Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran
Abstract
Nowadays, thin-walled energy absorbers have been widely used in different industrial applications. Many studies have also been performed to optimize behavior and application of such elements with geometrical triggers. In this paper, the effect of geometrical triggers on deformation and energy absorption of three-layer Al/Polypropylene/Steel deep drawn samples is investigated. To this end, the sandwich panel from two metal sheets of Steel and Aluminum as the skins and a Polypropylene layer as the core was fabricated. These three layers were bonded to each other applying a polymeric granular cohesive and under hot pressing technique to produce three-layer sandwich panels with two different core thicknesses. The sandwich panels were then deep drawn and converted to three-layer cups for crushing energy absorption tests. The quasi-static crushing tests were performed to evaluate the absorbed energy in fabricated samples. These tests were also done in order to studying the effects of core thickness and geometrical triggers (like notch and hole) on the samples body on the absorbed energy. The results show that increasing the core thickness from 1 to 2 mm enhances the capacity of energy absorption by about 6%. In addition, notch triggers with 45 degree in the samples wall could increase the energy absorption up to 8%.
Nassiri, A., & Atrian, A. (2020). Investigation of the energy absorption in three-layer Al/Polypropylene/Steel deep drawn cups. Iranian Journal of Manufacturing Engineering, 7(6), 34-43.
MLA
Ali Nassiri; Amir Atrian. "Investigation of the energy absorption in three-layer Al/Polypropylene/Steel deep drawn cups". Iranian Journal of Manufacturing Engineering, 7, 6, 2020, 34-43.
HARVARD
Nassiri, A., Atrian, A. (2020). 'Investigation of the energy absorption in three-layer Al/Polypropylene/Steel deep drawn cups', Iranian Journal of Manufacturing Engineering, 7(6), pp. 34-43.
VANCOUVER
Nassiri, A., Atrian, A. Investigation of the energy absorption in three-layer Al/Polypropylene/Steel deep drawn cups. Iranian Journal of Manufacturing Engineering, 2020; 7(6): 34-43.
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