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		题名	作者	年代	出处	被引量
	1	Evaluation of the acoustic nonlinearity parameter of materials with Rayleigh waves excited directly显示文摘An experimental technique for the determination of the relative acoustic nonlinearity parameter of materials with Rayleigh waves excited directly is presented.Rayleigh surface waves were directly generated in materials by the specific piezoelectric transducer fixed at the specimen's edge,and were measured with a laser interferometer system.After the Rayleigh wave signals were processed with FFT method,the relative acoustic nonlinearity parameter of materials was then determined from the absolute magnitudes of the fundamental and second harmonics of Rayleigh surface waves.This procedure was used to determine the acoustic nonlinearity parameters of aluminum alloys 2024 and 6061.It is shown that the results comply well with those available in the literature;this method can thus be used to evaluate the acoustic nonlinearity parameter of materials effectively.This technique can provide a practical way in the nondestructive characterization of degradation of materials and structures in the early fatigue life.	SHUI Guoshuang WANG Yuesheng Jianmin Qu Jin-Yeon Kim Laurence J. Jacobs	2010	Chinese Journal of Acoustics2010，29，2：	3
	2	A newtechnique for measuring the acoustic nonlinearity ofmaterials using Rayleigh waves显示文摘	Shui Guoshuang Kim J Y Qu Jianmin	2008	NDT&E Interna-tional2008，41，1：	1
	3	A new technique for measuring the acoustic nonlinearity of materials using Rayleigh waves显示文摘	SHUI Guoshuang KIM J Y QU Jianmin	2008	NDT & E International2008，41，1：	1
	4	Characterization of surface damage of a solid plate under tensile loading using nonlinear Rayleigh waves显示文摘This letter reports experimental observation of a direct correlation between the acoustic nonlinearity parameter (NP) measured with nonlinear Rayleigh waves and the accumulation of plasticity damage in an AZ31 magnesium alloy plate specimen.Rayleigh waves are generated and detected with wedge transducers,and the NPs are measured at different stress levels.The results show that there is a significant increase in the NPs with monotonic tensile loads surpassing the material's yielding stress.The research suggests an effective nondestructive evaluation method to track the surface damage in metals.	Guoshuang Shui,and Yuesheng Wang Department of Engineering Mechanics,Beijing Jiaotong University,Beijing 100044,China	2011	Theoretical & Applied Mechanics Letters2011，1，5：	0

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