Abstract
A technique for studying the processes of mechanical action on a newly formed crack and a device with a movable waveguide used to form fixed cracks in a rock sample in laboratory conditions are described. Analyzing the features of acoustic pulses, one can relate them to the dimensions and rate of the crack propagation, as well as control the sample destruction process. Characteristic time intervals in the sample destruction process are observed and resolved. Experimental results on the destruction of a marble plate with the use of the waveguide method are presented.
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