Damage and fracture behavior and spatio-temporal evolution of acoustic emission of sandstone before and after laser radiation

• Published in: Journal of Central South University Vol. 31; no. 9; pp. 3264 - 3280
• Main Authors: Gao, Ming-zhong, Liu, Jun-jun, Li, Chun-xiang, Yang, Ben-gao, Li, Fei, Zhou, Xue-min, Yang, Lei, Yang, Zun-dong, Xie, Jing
• Format: Journal Article
• Language: English
• Published: Changsha Central South University 01.09.2024; Springer Nature B.V
• Subjects: Acoustic emission; Compressive strength; Elastic properties; Energy distribution; Engineering; Failure modes; Laser damage; Lasers; Mechanical properties; Metallic Materials; Modulus of elasticity; Poisson's ratio; Radiation; Radiation damage; Sandstone; Storage capacity; 力学损伤; 激光破岩; 高效钻进; strength reduction; mechanical damage; laser rock breaking; 强度弱化; 声发射; acoustic emission; efficient drilling

Laser technology holds significant promise for enhancing rock-breaking efficiency. Experimental investigations were carried out on sandstone subjected to laser radiation, aiming to elucidate its response mechanism to such radiation. The uniaxial compressive strength of sandstone notably decreases by...