characteristics of acoustic emission wave produced by hypervelocity impact in integrally stiffened aluminum plates
- Paper number
IAC-11,A6,3,16,x9963
- Author
Dr. Wugang LIU, Beijing Institute of Structure & Environment Engineering, China
- Coauthor
Mr. Xiaokun ZANG, Beijing Institute of Structure & Environment Engineering, China
- Coauthor
Ms. Haibei Gu, Beijing Institute of Structure & Environment Engineering, China
- Coauthor
Prof. Baojun Pang, Harbin Institute of Technology, China
- Coauthor
Dr. Zengyao HAN, China Academy of Space Technology, China
- Year
2011
- Abstract
Two dimensional numerical models were established with the SPH (smoothed particle hydrodynamics) technique of AUTODYN hydro-codes in this paper. The acoustic emission (AE) signals produced by hypervelocity impacts on integrally stiffened aluminum plates, with stiffeners of different width and height, were obtained. The influences of integrally stiffeners on AE signals and on impact localization were investigated. The analytical results show that the width and height of stiffeners has more effects on the first amplitude of acoustic emission signals from the stiffeners than that from the other parts. Therefore, the AE sensors should be attached away from the stiffeners in order to reduce the effect on the precision of impact localization.
- Abstract document
- Manuscript document
IAC-11,A6,3,16,x9963.pdf (🔒 authorized access only).
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