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J. Cent. South Univ. (2018) 25: 357-367 DOI: https://doi.org/10.1007/s11771-018-3742-7 Experimental study on acoustic emission characteristics of jointed rock mass by double disc cutter LIN Qi-bin... rock shear rheological instrument was employed during the indentation process under disc cutters, and acoustic emission location system was used to analyze the rock damage and physical deterioration......
J. Cent. South Univ. (2016) 23: 817-824 DOI: 10.1007/s11771-016-3128-7 Comparison of three formulations for eddy-current problems in a spiral coil electromagnetic acoustic transducer SHI Wen-ze(石文泽... (FEM), three formulations were applied in a spiral coil electromagnetic acoustic transducer (EMAT) example to solve magnetic vector potential (MVP). The input impedances calculated by Formulation III......
Monitoring Damage Evolution in a Titanium Matrix Composite Shaft Under Torsion Loading Using Acoustic EmissionXu Kong1,2,Yu-Min Wang1,Xu Zhang1,Qing Yang1,Guo-Xing Zhang1,Li-Na Yang1,Rui Yang11... under torsion loading were monitored using the acoustic emission technique. The composite shaft with SiC fibers at ± 45° orientations was prepared by the solid-state fabrication process. Both......
Influence of Interpenetrating Polymer Networks (IPN) Microstructure on Underwater Acoustic Stealth Performance罗忠College of Naval Architecture and Power, Naval University of Engineering摘 要:acoustic pulse tube device, the microstructure, phase separation degree, phase size and phase continuity......
Influence of Interpenetrating Polymer Networks (IPN) Microstructure on Underwater Acoustic Stealth Performance罗忠College of Naval Architecture and Power, Naval University of Engineering摘 要:acoustic pulse tube device, the microstructure, phase separation degree, phase size and phase continuity......
EFFECT OF TOOL WEAR ON MICROSTRUCTURE, MECHANICAL PROPERTIES AND ACOUSTIC EMISSION OF FRICTION STIR WELDED 6061 Al ALLOY J. Zhang1,W.M. Zeng2,H.L. Wu2 (1.The University of Texas at El Paso... of welds.Tools with different pin-wear levels are used to weld 6061 Al alloy, while acoustic emission (AE) sensing, metallographic sectioning, and tensile testing are employed to evaluate the weld......
The Acoustic Emission Effects of Martensite Transformation in Alloys Cr12MoV and Fe-33Ni-4Ti-10Co焦成革,张宝祺,武高辉,姚忠凯摘 要:<正> 1 Introduction The method of acoustic emission (AE)as a new technique to study the processesin metals and alloys in the solid phase hasbeen widely used and developed since thelast 20 years. Martensite transformationis......
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Monotonic tensile behavior analysis of three-dimensional needle-punched woven C/SiC composites by acoustic emissionPeng Fang Laifei Cheng Litong Zhang Jingjiang Nie National Key Laboratory... of acoustic emission was researched.Also the fracture morphology was examined by S-4700 SEM after tensile tests to prove the damage mechanism.The results indicate that the cumulative energy of acoustic......
Effects of Specimen Height on the Acoustic Emission Rate Value ’a’ for Cement Mortar王岩1,HU Hongxiang1,LU Guijuan1,CHEN Shijie1,LIU Shaojun1,WANG Yao21. College of Civil and Transportation Engineering... damage processes were monitored by full-digital acoustic emission acquisition system,followed by an analysis of mechanical behavior and AE activity.The experimental results show that the height......