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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Acoustic emission generated by moving loads on sea ice: Preliminary results
AbstractAcoustic emission techniques have been used for several decades in the nondestructive testing of materials. The purpose of this project is to apply these techniques to sea ice subjected to cyclic loading due to moving vehicles. Preliminary results show that acoustic emission events are recorded which are clearly associated with the strain field established by the vehicle. A time delay of the order of a second is measured between the maxima in surface strain and surface strain rate and the peak acoustic emission count rate. However the strain amplitude has a maximum at the critical velocity of the vehicle while the peak acoustic emission count rate increases with vehicle speed. Further work is being initiated to address some of the questions raised by this study.
Acoustic emission generated by moving loads on sea ice: Preliminary results
AbstractAcoustic emission techniques have been used for several decades in the nondestructive testing of materials. The purpose of this project is to apply these techniques to sea ice subjected to cyclic loading due to moving vehicles. Preliminary results show that acoustic emission events are recorded which are clearly associated with the strain field established by the vehicle. A time delay of the order of a second is measured between the maxima in surface strain and surface strain rate and the peak acoustic emission count rate. However the strain amplitude has a maximum at the critical velocity of the vehicle while the peak acoustic emission count rate increases with vehicle speed. Further work is being initiated to address some of the questions raised by this study.
Acoustic emission generated by moving loads on sea ice: Preliminary results
Langhorne, P.J. (Autor:in) / Robinson, W.H. (Autor:in) / Squire, V.A. (Autor:in)
Cold Regions, Science and Technology ; 18 ; 337-342
04.01.1990
6 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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