THE CHARACTERISTIC OF THE ACCELERATING ENERGY RELEASE(AER) AS THE PRECURSOR TO FAILURE OF ROCK SPECIMENS UNDER DIFFERENT LOADING CONDITIONS

【Author】

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

【Abstract】

<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.

【Keywords】

static load;;impact;;accelerating energy release(AER)

References

To explore the background and basis of the node document

Springer Journals Database

Total: 22 articles

  • [1] YIN XIANG-CHU AND YIN CAN(Institute of Geophysics, State Seismological Bureau, Beijing 100081, PRC), THE PRECURSOR OF INSTABILITY FOR NONLINEAR SYSTEMS AND ITS APPLICATION TO EARTHQUAKE PREDICTION, Science in China,Ser.B,
  • [2] Charles G. Bufe;Stuart P. Nishenko;David J. Varnes, Seismicity trends and potential for large earthquakes in the Alaska-Aleutian region, Pure and Applied Geophysics PAGEOPH,
  • [3] Xiang-Chu Yin;Xue-zhong Chen;Zhi-ping Song;Can Yin, A new approach to earthquake prediction: The Load/Unload Response Ratio (LURR) theory, Pure and Applied Geophysics PAGEOPH,
  • [4] J. B. Rundle;W. Klein;S. Gross, Physical Basis for Statistical Patterns in Complex Earthquake Populations: Models, Predictions and Tests, Pure and Applied Geophysics,

More>>

Similar documents

Documents that have the similar content to the node document

More>>