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http://dx.doi.org/10.3795/KSME-A.2007.31.10.1025

Mechanical Performance of Near-Optimized Sandwich Panels with Quasi-Kagome Truss Cores under Bending Load  

Lim, Chai-Hong (넥센타이어(주))
Joo, Jai-Hwang (전남대학교 자동차연구소)
Kang, Ki-Ju (전남대학교 기계시스템공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.31, no.10, 2007 , pp. 1025-1030 More about this Journal
Abstract
Three kinds of metallic sandwich panels with quasi-Kagome truss cores have been analyzed on their mechanical behaviors subjected to bending load. According to the results of previous work on the optimal design, they were designed to have similarly high strength per weight with the identical overall sizes, i.e., the total length, the width, the core height. Differences were in the face sheet thickness and/or the thickness of the metal sheet from which the core was fabricated through expanding and bending processes. Under the bending load, they performed well as designed, as far as the maximum load is concerned. However, after the maximum load, the load-displacement curves were different each other depending on the slenderness ratio of the truss elements composing the quasi-Kagome truss cores and the face sheet thickness. Namely, the slenderness ratio and the face sheet thickness governed stability of the elastic and plastic buckling. Therefore, if energy absorption characteristics or structural stability as well as the maximum load capacity are to be achieved, the sandwich panel with thick truss members and thick face sheet should be selected.
Keywords
PCM(Periodic Cellular Metal); Sandwich Plates; Kagome Truss; Metal Expanding Process;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
Times Cited By SCOPUS : 1
연도 인용수 순위
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