Results 31 to 40 of about 197,256 (253)

Influence of backing layer on the non-metallic encapsulated acoustic emission sensor for concrete monitoring

Case Studies in Construction Materials, 2023
Use acoustic emission sensors to monitor the acoustic emission phenomenon of concrete materials after being loaded has always been a hot spot in the field of civil engineering.
Haoran Li, Yan Hu, Laibo Li, Dongyu Xu
doaj  

Acoustic emission in the friction of composite materials

Aviation, 2014
The model of acoustic emission signal formation during friction and wearing of surfaces of composite materials was examined. The forms of acoustic emission resultant signals were shown.
Sergey Filonenko, Aleksandr Kosmach
doaj   +1 more source

Sound and light from fractures in scintillators

, 2013
Prompted by intriguing events observed in certain particle-physics searches for rare events, we study light and acoustic emission simultaneously in some inorganic scintillators subject to mechanical stress.
Ciliberto, S., Deschanel, S., Di Stefano, P. C. F., Mony, E., Ramos, O., Santucci, S., Tantot, A., Vanel, L., Verdier, M. -A., Wei, Y.   +9 more
core   +2 more sources

Analysis of acoustic emission during the melting of embedded indium particles in an aluminum matrix: a study of plastic strain accommodation during phase transformation

, 2012
Acoustic emission is used here to study melting and solidification of embedded indium particles in the size range of 0.2 to 3 um in diameter and to show that dislocation generation occurs in the aluminum matrix to accommodate a 2.5% volume change.
A. Galeski, A. Wolfenden, A.K. Malhotra, A.K. Malhotra, A.K. Malhotra, A.L. Purvis, B. Guérard von, B.I. Voronenko, D.C. Ahn, D.C. Aken Van, David C. Van Aken, F. Kroupa, G.M. Vyletel, I. Gurrappa, J. Tao, J.L. Murray, J.W. Edington, L. Bourgeois, L.E. Murr, M.D. Sangid, M.H. Loretto, M.M. Kuba, Michael M. Kuba, P.C. Clapp, P.M. Mummery, P.S. Dobson, R. Vandervoort, R.Z. Valiev, S.M.C. Bohemen Van, S.M.C. Bohemen Van, S.M.C. Bohemen Van, T.Y. Tan, V.B. Vorontsov, Y. Oshima   +33 more
core   +1 more source

Effect of moisture content on characteristic stress and acoustic emission characteristics of red sandstone

Rock and Soil Mechanics, 2021
In order to investigate the response law of moisture content to the characteristic stress and acoustic emission characteristics of red sandstone, the uniaxial compression tests of red sandstone under different moisture content conditions were conducted ...
ZHAO Kui , RAN Shan-hu, ZENG Peng, YANG Dao-xue, TENG Tian-ye   +4 more
doaj   +1 more source

On the Anatomy of Acoustic Emission

The Journal of the Acoustical Society of America
Abrupt frictional fault failure is normally accompanied by acoustic emission (AE)—impulsive elastic wave broadcast—with amplitude proportional to particle velocity. The cumulative sum of the fault particle velocities is a slip displacement.In laboratory shear experiments described here, measurements of a sequence of laboratory earthquakes includes ...
Robert A. Guyer, Samson marty, Chris Marone, Paul A. Johnson, Christopher W Johnson   +4 more
openaire   +1 more source

Mutation effect of acoustic and electromagnetic emissions of hard rock impact failure

International Journal of Distributed Sensor Networks, 2019
To reveal acoustic emission and electromagnetic emission effects during hard rock impact failure is a crucial issue for monitoring and warning rockburst risk induced by hard roof fracture and fall.
Yang Liu, Cai-Ping Lu, Heng Zhang
doaj   +1 more source

Acoustic Emission of Deformation Twinning in Magnesium [PDF]

Materials, 2016
The Acoustic Emission of deformation twinning in Magnesium is investigated in this article. Single crystal testing with combined full field deformation measurements, as well as polycrystalline testing inside the scanning electron microscope with simultaneous monitoring of texture evolution and twin nucleation were compared to testing at the laboratory ...
Mo, Chengyang, Wisner, Brian, Cabal, Mike, Hazeli, Kavan, Ramesh, K. T., El Kadiri, Haitham, Al-Samman, Talal, Molodov, Konstantin D., Molodov, Dmitri, Kontsos, Antonios   +9 more
openaire   +4 more sources

RESEARCH ON CBN GRINDING WHEEL PERFORMANCE MONITORING METHOD BASED ON SHANNON ENTROPY AND ACOUSTIC EMISSION SIGNAL (MT)

Jixie qiangdu, 2023
In order to effectively evaluate the grinding performance of CBN（Cubic Boron Nitride） grinding wheel in the grinding process, a monitoring method of CBN grinding wheel performance was proposed based on Shannon entropy theory and acoustic emission signal.
TAN YongMin, SHI Zhan, CHI YuLun, GU JiaJian   +3 more
doaj  

Study on internal strain and acoustic emission characteristics of loaded concrete

Gong-kuang zidonghua, 2016
order to study interior crack evolution rules in rupture and instability process of concrete specimen, uniaxial compression experiment of concrete specimen embedded with strain brick was conducted, variation rule of internal strain of the concrete ...
WANG Hao, WANG Xiaoran, LIU Xiaofei, LI Xuelong, ZHAN Tangqi   +4 more
doaj   +1 more source