Abstract：The failure of rock is closely relative to energy change. The specimens of siltsand were pseudo-triaxially compressed in MTS servo-controlled testing machine，and the complete curves of stress and deformation in axial and circumference were measured to calculate the energy. The specimens failing in axial compression were absorbing energy continually to overcome the internal friction in rock. And the specimens failing in confining pressure reduction while keeping axial deformation constantly were releasing energy through its circumference expanding in hydraulic oil. However，the absorbed energy of specimens at crack point in the two loading paths has the same linear relation with confining pressure.
尤明庆 华安增. 岩石试样破坏过程的能量分析*[J]. 岩石力学与工程学报, 2002, 21(06): 778-781.
You Mingqing1， Hua Anzeng2. ENERGY ANALYSIS ON FAILURE PROCESS OF ROCK SPECIMENS. , 2002, 21(06): 778-781.
2002, Vol. 21 
