... will happen. In general, the critical value or fracture strength td depends on loading rate, etc. Figure 1 shows the wave propagation at five typical times, where is the length of incident compressive wave. We can see from the beginning of wave reflec- tion at the free surface, a superposition between...

... hydraulic fracturing dynamic fracture evolution specimen compressive wave Reservoir Characterization strength stress wave tensile crack Upstream Oil & Gas tensile wave Coalescence evolution reservoir geomechanics fracture evolution primary tensile crack failure process cavity...