Paper Title:
Serration Phenomena of AA5182/Polypropylene/AA5182 Sandwich Sheets
  Abstract

It has been reported that the 5182 aluminum sheet shows Lüders band because of dissolved Mg atoms that cause fabrication process problem, especially surface roughness. The examination of serration phenomena has been made after the tensile deformation of the AA/PP/AA sandwich sheets as well as that of the 5182 aluminum. All sandwich sheets and the 5182 aluminum skin showed serration phenomena on their flow curves. However, the magnitude of serration was significantly diminished in the sandwich sheet with high volume fraction of the polypropylene core. According to the results of the analysis of the surface roughness after tensile test, Lüders band depth of the sandwich sheet evidently showed lower than that of the 5182 aluminum skin. The strain rate sensitivity, m-value, of the 5182 aluminum skin was -0.006. By attaching these skins to the polypropylene core, which has relatively large positive value of 0.050, m-value of the sandwich sheets changed to the positive value.

  Info
Periodical
Key Engineering Materials (Volumes 326-328)
Edited by
Soon-Bok Lee and Yun-Jae Kim
Pages
417-420
DOI
10.4028/www.scientific.net/KEM.326-328.417
Citation
K. J. Kim, J. S. Kim, "Serration Phenomena of AA5182/Polypropylene/AA5182 Sandwich Sheets", Key Engineering Materials, Vols. 326-328, pp. 417-420, 2006
Online since
December 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Nobumasa Tsuji, Taiju Shibata, Junya Sumita, Masahiro Ishihara, Tatsuo Iyoku
Abstract:High temperature gas cooled reactor (HTGR) with higher outlet coolant temperature nearly 1000°C is expected for direct utilization of process...
2720
Authors: Yan Hong Xu, Ai Qun Li, Ya Na Huang
Abstract:The buckling-restrained braces(BRBs) with low yield strength(LYS) steel make good use of ductility and hysteretic energy dissipation of the...
1521
Authors: Li Qing Meng, Shi Zhe Chen, Yan Wu, Xue Feng Shu
Materials Engineering
Abstract:Aerodynamic gun impact test is carried out to investigate sandwich beam with metallic skin and Nomex honeycomb core damage mechanism and...
2143
Authors: Nurashikin Sawal, Md Akil Hazizan
Abstract:Low-velocity impact test on sandwich panels composed of aluminum face sheets and thermoplastic honeycomb cores have been performed to...
461
Authors: Wei Xie, Fei Xu, Hui Ming Yang
Chapter 3: Information Technology for Materials
Abstract:Stitched foam-core sandwich structure is a new light weight sandwich structure material. In this paper, flexural testing was performed. For...
337