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详细信息
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Accession number: 20100812728727 Title: Experimental study on spallation in differently heat-treated 6061Al Authors: Wu, Shi-Yong1, 2 ; Lu, Fang-Yun1 ; Lin, Yu-Liang1 ; Zhou, Chao-Yang1 ; Zhang, Xiao-Hui3 ; Zhang, Duoa1 ; Wang, Xiao-Feng1 Author affiliation: 1 School of Science, National University of Defense Technology, Changsha 410073, China 2 Naval Aeronautical Engineering Institute, Yantai 264001, China 3 Beijing Institute of Astronautical Systems Engingeering, Beijing 100076, China Corresponding author: Wu, S.-Y. (wusy81@163.com) Source title: Proceedings of SPIE - The International Society for Optical Engineering Abbreviated source title: Proc SPIE Int Soc Opt Eng Volume: 7375 Monograph title: International Conference on Experimental Mechanics 2008, ICEM 2008 Issue date: 2009 Publication year: 2009 Article number: 737517 Language: English ISSN: 0277786X CODEN: PSISDG Document type: Conference article (CA) Conference name: International Conference on Experimental Mechanics 2008, ICEM 2008 Conference date: November 8, 2008 - November 8, 2008 Conference location: Nanjing, China Conference code: 79360 Publisher: SPIE, P.O. Box 10, Bellingham, WA 98227-0010, United States 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. © 2009 SPIE. Number of references: 9 Main heading: Experiments Controlled terms: Alloys - Aluminum - Computer simulation - Gages - Impact testing - Mathematical models - Mechanics - Numerical analysis - Spalling - Stress analysis Uncontrolled terms: Al-alloy - Buffer materials - Combined analysis - Damage distribution - Experimental studies - Finite element codes - Fracture damage - Gas gun - Manganin - Numerical results - Numerical simulation - Numerical simulation studies - Plate impact - Shock impedance - Spall strength - Stress gauges - Stress profile Classification code: 943.3 Special Purpose Instruments - 931.1 Mechanics - 921.6 Numerical Methods - 921 Mathematics - 901.3 Engineering Research - 951 Materials Science - 723.5 Computer Applications - 535.1.1 Rolling Mills - 531.1 Metallurgy - 422.2 Test Methods - 421 Strength of Building Materials; Mechanical Properties - 541.1 Aluminum DOI: 10.1117/12.839050 Database: Compendex Compilation and indexing terms, © 2009 Elsevier Inc. |
4楼2010-03-13 23:34:14
wusy81
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5楼2010-03-13 23:46:54
wusy81
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7楼2010-12-05 00:40:48
