@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}, }