Dynamic strength and failure modes of sandstone under biaxial compression
K. Liua, J. Zhaoa, G. Wua, A. Maksimenkob, A. Haquea, Q.B. Zhang - Department of Civil Engineering, Monash University, VIC, 3800, Australia - Australian Synchrotron / ANSTO, 800 Blackburn Rd, Clayton, VIC, 3168, Australia
Geomaterials are increasingly being subjected to the quasi-static confinements and dynamic loadings, and thus it is critical to characterise dynamic behaviour under the coupled static-dynamic loading conditions. In this study, a series of dynamic biaxial compression tests was performed on cubic specimens of sandstone by using a triaxial Hopkinson bar system, high-speed three-dimensional digital image correlation (3D-DIC) and synchrotron-based micro-computed-tomography (μCT).