@article{(Open Science Index):https://publications.waset.org/pdf/10005568,
	  title     = {Laser Ultrasonic Diagnostics and Acoustic Emission Technique for Examination of Rock Specimens under Uniaxial Compression},
	  author    = {Elena B. Cherepetskaya and  Vladimir A. Makarov and  Dmitry V. Morozov and  Ivan E. Sas},
	  country	= {},
	  institution	= {},
	  abstract     = {Laboratory studies of the stress-strain behavior of rocks specimens were conducted by using acoustic emission and laser-ultrasonic diagnostics. The sensitivity of the techniques allowed changes in the internal structure of the specimens under uniaxial compressive load to be examined at micro- and macro scales. It was shown that microcracks appear in geologic materials when the stress level reaches about 50% of breaking strength. Also, the characteristic stress of the main crack formation was registered in the process of single-stage compression of rocks. On the base of laser-ultrasonic echoscopy, 2D visualization of the internal structure of rocky soil specimens was realized, and the microcracks arising during uniaxial compression were registered.
},
	    journal   = {International Journal of Geotechnical and Geological Engineering},
	  volume    = {10},
	  number    = {10},
	  year      = {2016},
	  pages     = {983 - 987},
	  ee        = {https://publications.waset.org/pdf/10005568},
	  url   	= {https://publications.waset.org/vol/118},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 118, 2016},
	}