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Monitoring damage evolution of steel strand using acoustic emission technique and rate process theoryDENG Yang(邓扬)1, 2, LIU Yang(刘扬)1, 2, FENG Dong-ming(冯东明)3(1. Key Laboratory for Safety Control... the acoustic emission (AE) technique, an experimental investigation into the damage evolution for steel strand under axial tension was described. The damage evolution model for steel stand relating......
Rock burst proneness prediction by acoustic emission test during rock deformationZHANG Zhi-zhen(张志镇), GAO Feng(高峰), SHANG Xiao-ji(尚晓吉) (1. State Key Laboratory for Geomechanics and Deep Underground... proneness was connected with the acoustic emission (AE) parameter in this work, which contributes to predicting the rock burst risk using AE technique. Primarily, a rock burst proneness index is proposed......
Excitation of Light-Induced Acoustic Waves in Doped Lithium Niobate Crystals Huang Wei1,Wu Zhongkang2 (1.Department of Basic, Beijing Institute of Civil Engineering and Architecture, Beijing 100044, China;2.Department of Physic, Nankai University, Tianjin 300071, China) Abstract:The phenomena of acoustic emission in doped lithium niobate crystals were observed in the process of light-induced......
J. Cent. South Univ. Technol. (2011) 18: 749-754 DOI: 10.1007/s11771-011-0758-7 Modeling and finite element analysis of transduction process of electromagnetic acoustic transducers... of the static bias magnetic field and computing the particle displacements in the simulation model of electromagnetic acoustic transducer (EMAT), a multi-field coupled model was established......
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......
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......
J. Cent. South Univ. (2019) 26: 2878-2890 DOI: https://doi.org/10.1007/s11771-019-4221-5 An improved joint method for onset picking of acoustic emission signals with noise ZHOU Zi-long(周子龙)1, CHENG... of Springer Nature 2019 Abstract: The onset times of acoustic signals with spikes, heavy bodies and unclear takeoffs are difficult to be picked accurately by the automatic method at present. To deal......
Broadband acoustic meta-structures fabricated by additive manufacturing贾潇1,2,洪明辉2,严明11. Department of Materials Science and Engineering,Southern University of Science and Technology2. Department of Electrical and Computer Engineering,National University of Singapore摘 要:<正>Acoustic meta-structures,because of their flexible and unprecedented......
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......
Acoustic Tamm States in Double 1D Phononic Crystals梅雪飞1,2,柯满竹11. Key Lab of Acoustic and Photonic Materials and Devices of Ministry of Education and Department of Physics,Wuhan University2. School of Science,Wuhan University of Technology摘 要:A simple planar multilayer structure was proposed for the observation of acoustic Tamm states.The theoretical......