Ne Liu , Shuyun Cheng , Jiaqi Fan , Ying Zhu , Ning Yang , Yongdong Pan
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引用次数: 0
Abstract
The nonlinear ultrasonic inspection is a method that the higher harmonics generated by the interaction of ultrasound and fatigue damage, which is used to evaluate material properties. In this paper, the difference between experimental measurement and simulation analysis was discussed, based on the simulation and experimentation. The results of simulation and experimentation both show that the nonlinear coefficient increases, reaches the maximum near the wavelength of , and then decreases to a certain extent and stabilizes. The difference between the simulation and the experimentation is that the crack depth corresponding to the maxima of the nonlinear coefficient and the relative variation between the nonlinear coefficient and the peak are different. And the causes of the difference were analyzed according to the simulation results and experimental measurements, which provides a reliable basis for the further study of the evaluation mechanism of the nonlinear Rayleigh wave.
期刊介绍：
Ultrasonics is the only internationally established journal which covers the entire field of ultrasound research and technology and all its many applications. Ultrasonics contains a variety of sections to keep readers fully informed and up-to-date on the whole spectrum of research and development throughout the world. Ultrasonics publishes papers of exceptional quality and of relevance to both academia and industry. Manuscripts in which ultrasonics is a central issue and not simply an incidental tool or minor issue, are welcomed.
As well as top quality original research papers and review articles by world renowned experts, Ultrasonics also regularly features short communications, a calendar of forthcoming events and special issues dedicated to topical subjects.
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