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on granite specimens, each with a prefabricated circular hole, under different lateral loads. Using micro camera, acoustic emission (AE) system, and infrared thermal imager, the AE characteristics...; acoustic emission; spatio-temporal evolution; thermal imaging Cite this article as: LIU Chong-yan, ZHAO Guang-ming, XU Wen-song, MENG Xiang-rui, HUANG Shun-jie, ZHOU Jun, WANG Yun-kun. Experimental......
University, Chongqing 400030, China Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract: Acoustic Emission (AE) waveforms contain information.... This study well reflects the response law of geophysical signals in the process of coal rock instability and failure, providing a basis for monitoring coal rock dynamic disasters. Key words: acoustic......
Spatial acoustic emission evolution of red sandstone during multi-stage triaxial deformationYANG Sheng-qi(杨圣奇)1, NI Hong-mei(倪红梅)2, WEN Sen(温森)1(1. State Key Laboratory for Geomechanics and Deep... acoustic emission (AE) locations were obtained by adopting an AE monitoring system. Based on spatial AE distribution evolution of red sandstone during multi-stage triaxial deformation, the relation between......
Effect of fiber orientation in uni-directional glass epoxy laminate using acoustic emission monitoringV.Arumugam1,S.Barath Kumar1,C.Santulli2,A.Joseph Stanley31. Department of Aerospace Engineering,Anna University2. Department of Chemical Engineering,Materials and Environment,Università La Sapienza3. MIT Campus,Anna University摘 要:Acoustic emission(AE......
-dimensional, large eddy simulation and FW-H acoustic model were adopted to simulate the aerodynamic noise outside high-speed train bogie section based on Lighthill acoustic theory, and noise reduction advice was proposed. The results show that the aerodynamic noise is a kind of wide frequency noise which exits in wide frequency band without obvious main frequency. The acoustic pressure amplitude......
Trans. Nonferrous Met. Soc. China 30(2020) 789-799 Acoustic emission source location considering refraction in layered media with cylindrical surface Zi-long ZHOU1, Jing ZHOU1, Xin CAI1, Yi-chao RUI1...: To solve the problem that the existing acoustic emission (AE) source location algorithms cannot always obtain accurate results for multilayer cylindrical media, a new acoustic emission source......
可调声表面波滤波器的研究进展 杨成韬1,黄小锋1 (1.电子科技大学电子薄膜与集成器件国家重点实验室,成都,610054) 摘要:随着移动通信产业的迅猛发展,作为通信系统关键器件之一的声表面波滤波器(SAWF)迎来了新的研究热潮.可调SAWF(TSF)因其体积小巧,性能卓越,越来越受到重视.简述了SAWF的原理,介绍了几种主要TSF的结构,性能和特点,展望了其今后的发展趋势. 关键词:可调; 声表面波; 滤波器; tunable; surface acoustic wave; filter; [全文内容正在添加中] ......
Scanning Electron Acoustic Microscopy of GaInAsSb by Metalorganic Chemical Vapor Deposition李树玮,金亿鑫,周天明,张宝林,宁永强,蒋红摘 要:ＳｃａｎｎｉｎｇＥｌｅｃｔｒｏｎＡｃｏｕｓｔｉｃＭｉｃｒｏｓｃｏｐｙｏｆＧａＩｎＡｓＳｂｂｙＭｅｔａｌｏｒｇａｎｉｃＣｈｅｍｉｃａｌＶａｐｏｒＤｅｐｏｓｉｔｉｏｎＬｉＳｈｕｗｅｉ,ＪｉｎＹｉｘｉｎ,ＺｈｏｕＴｉａｎｍｉｎｇ,ＺｈａｎｇＢａｏｌｉｎ(李...关键词:......
Theoretical and experimental analysis on the mechanism of the Kaiser effect of acoustic emission in brittle rocksRuifu Yuan~(1)Yuanhui Li~(2) (1)School of Energy Science and Engineering,Henan... effect is formally described as the absence of detectable acoustic emission(AE)events until the load imposed on the material exceeds the previous applied level and is usually used to estimate geostress.By......
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