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	The effects of shock wave and quasi-traveling wave in the mechanical impact test
	Wu Mei ; Sun ZhongFeng ; Zhang LuMei ; Chen Yong ; Ji LinHong
	2010
关键词	aerospace environment test shock wave quasi-traveling wave
英文摘要	It is well-known that the numerical value is always larger than the measured value, amounting to many times, if we calculate the stress of the specimen in the impulse test using the NASTRAN and ANSYS (N-A) software. We believe that the impact induces shock wave or quasi-traveling wave in the specimen, which can qualitatively explain the discrepancy of the two values. In order to verify it, the Lax-Friedrichs (L-F) scheme is taken to simulate the transmission of shock wave and quasi-traveling wave in solid. Numerical results show that the action area of the stress wave is small and the action time is very short, so the resulting stress and actual work are not big. In addition, the distribution of the impact values obtained by the numerical simulation is in accordance with the trend of the measured impact values.; Engineering, Multidisciplinary; Materials Science, Multidisciplinary; SCI(E); EI; 0; ARTICLE; 9; 2535-2541; 53
语种	英语
出处	SCI ; EI
出版者	science china technological sciences
内容类型	其他
源URL	[http://hdl.handle.net/20.500.11897/242451]
专题	数学科学学院
推荐引用方式 GB/T 7714	Wu Mei,Sun ZhongFeng,Zhang LuMei,et al. The effects of shock wave and quasi-traveling wave in the mechanical impact test. 2010-01-01.

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