Experimental Study of Electric Potential Response Characteristics of Different Lithological Samples Subject to Uniaxial Loading

• Published in: Rock mechanics and rock engineering Vol. 54; no. 1; pp. 397 - 408
• Main Authors: Li, Zhonghui, Zhang, Xin, Wei, Yang, Ali, Muhammad
• Format: Journal Article
• Language: English
• Published: Vienna Springer Vienna 01.01.2021; Springer Nature B.V
• Subjects: Accumulation; Atomic force microscopy; Civil Engineering; Coefficient of variation; Correlation analysis; Correlation coefficient; Correlation coefficients; Crack propagation; Crack tips; Earth and Environmental Science; Earth Sciences; Electric potential; Electrical properties; Electrification; Electron microscopy; Fluorescence; Geophysics/Geodesy; Lithology; Mechanical loading; Microscopy; Microstructure; Original Paper; Rock masses; Rocks; Scanning electron microscopy; Stress concentration; Stress propagation; Structural damage; Structural engineering; Surface potential; X-ray fluorescence; Electric potential; Different lithological samples; Electrification reasons; Surface potential; Crack propagation

Electric potential (EP) signals are detected when coal or rock materials are subjected to mechanical loading. Such signals are attributed to the generation and accumulation of free charges under externally applied loads. Due to the excellent correlation between EP and damage evolution, EP methods ha...