Guoxiang Wan~*,Central South University,China Xibing Li,Central South University,China Fengqiang Gong,Central South University,China Zhouyuan Ye,Central South University,China Qisheng Wang,Central South University,China
<正>The experiments of uniaxial compression and impact of rock specimens were made on Instron1342 and SHPB test systems respectively.The exponent z-values of the accelerating energy release(AER) as one kind of macroscopic failure precursors of rock specimens are obtained by fitting with the experimental data using the theory of AER.The z-values are less than 1 both under static load and impact,which indicates that elastic strain energy does accelerate to release before rock failure.The z-values of the AER of rock under impact are larger than conventional value of rock under static load.The exponent z is the focus of the problem,which characterizes the degree of the AER.Comparing z-values under static load with impact,the degree of AER of rock specimens under static load is more fiercely than under impact.The theory of AER is first used to analyze the strain energy of rock failure under impact. The work furthers to develop the theory of the AER.
static load;;impact;;accelerating energy release(AER)
To explore the background and basis of the node document
Documents that have the similar content to the node document