S.M.H. Mirbagheri, M. Daneshmand, Y. Tabatabaie. Effect of Cellular Structure of A356-10 vol.%SiC Composite Aluminum Foam on Progressive Quasi-Static Axial Buckling Behavior of Brass Crush-Box. Journal of Advanced Materials in Engineering (Esteghlal) 2015; 33 (3) :105-124
URL:
http://jame.iut.ac.ir/article-1-601-en.html
, smhmirbagheri@aut.ac.ir
Abstract: (17851 Views)
In this paper, the behavior of energy absorption of crush-boxes, made of Aluminum foam advanced material, was investigated based on foam cellular structure homogeneity. Therefore, thin-walled tubes of Cu-Zn30wt.%.brass alloy with 27 mm diameter and 1 mm thickness were filled with A356-10vol.%SiC-Xwt.%. of TiH2 foam liquid. Foam samples with 1, 1.5, 2wt.%. of TiH2 were prepared by Form Grip into the brass tubes in order to produce crush-box .Then the crush-boxes as energy absorber elements were compressed by un-axial loading and then behaviors of progressive buckling foams were measured. Results showed by decreasing A356-10vol.% SiC foam density from 0.93 to 0.88 and then 0.43 g/cm3, the energy absorption would be changed from 12955 to 13465 and then to 11192 J, respectively. The sample with 1.5wt.% of TiH2 and density of 0.88 g/cm3 had the maximum energy absorption. Also, the results of foams cellular structure images showed that foams of homogenous cellular structure had a sizeable effect on the progressive buckling behavior. We developed a new parameter as "sorting coefficient", which can release the foams cellular structure non-homogeneity, and change the crush-boxes energy absorption during the progressive plastic buckling.
Type of Study:
Research |
Subject:
General Received: 2015/03/15 | Accepted: 2015/03/15 | Published: 2015/03/15