TY - JOUR
TI - An experimental study on the damage and acoustic emission character of raw coalunder uniaxial compression condition
AU - Gong Peng
AU - Ma Zhan-Guo
AU - Ni Xiao-Yan
AU - Li Yang
AU - Chen Yong-Heng
JN - Thermal Science
PY - 2021
VL - 25
IS - 6
SP - 4537
EP - 4543
PT - Article
AB - In the paper, the acoustic emission character is analyzed using a new damage  variable which is defined based on ring-down count or energy count of  acoustic emission and the damage model of raw coal under uniaxial  compression is thus established. The results show that acoustic emission  information can reflect inter­nal damage of raw coal and is closely related  with primary crack compression and evolutionary course of new crack  generation, growth, and connectivity.