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Proceedings Paper

Experimental study on spallation in differently heat-treated 6061Al
Author(s): Shi-yong Wu; Fang-yun Lu; Yu-Liang Lin; Chao-yang Zhou; Xiao-hui Zhang; Duo Zhang; Xiao-feng Wang
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Paper Abstract

In this paper, to better understand the spall properties of 6061 Al-Alloy, a combined analysis of experimental and numerical simulation study is conducted. A series of plate impact experiments loaded by gas gun have been performed at a range of velocities required to cause spall planes to grow in these variously heat-treated 6061 Al-Alloy specimens. Two different methods are employed. A commercial manganin stress gauge is sandwiched between the specimens and a buffer material with lower shock impedance (usually PMMA) which is used to determine the stress profiles; without the buffer material, target is well recovered by avoiding any unwanted impact, then the collected specimen is examined under a microscope for charactering fracture damage. The spall strength and the process of spallation are presented from the experimental results. The finite element code LS-DNYA is used to simulate the plate impact testing. The damage distribution and its development in the specimens are given from the numerical results, which is coincided with the experimental results.

Paper Details

Date Published: 25 August 2009
PDF: 6 pages
Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 737517 (25 August 2009); doi: 10.1117/12.839050
Show Author Affiliations
Shi-yong Wu, National Univ. of Defense Technology (China)
Naval Aeronautical Engineering Institute (China)
Fang-yun Lu, National Univ. of Defense Technology (China)
Yu-Liang Lin, National Univ. of Defense Technology (China)
Chao-yang Zhou, National Univ. of Defense Technology (China)
Xiao-hui Zhang, Beijing Institute of Astronautical Systems Engineering (China)
Duo Zhang, National Univ. of Defense Technology (China)
Xiao-feng Wang, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 7375:
ICEM 2008: International Conference on Experimental Mechanics 2008
Xiaoyuan He; Huimin Xie; YiLan Kang, Editor(s)

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