Dynamic elastic displacements at the surface of an elastic half-space due to defect sources
- 14 June 1983
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 16 (6) , 1069-1083
- https://doi.org/10.1088/0022-3727/16/6/015
Abstract
Acoustic emission waveforms for the epicentre location of an elastic half-space have been calculated for force dipoles and combinations of force dipoles representing the formation of point microcracks, the motion of dislocations and dilatation sources. The effects of source orientation, depth and time dependence are shown graphically. These results are used to emphasise the features of acoustic emission signals and their frequency spectra that must be accurately measured if dynamic information or the source type are to be deduced.Keywords
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