Experimental and numerical studies on the mechanical behaviour of Australian Strathbogie granite at high temperatures: An application to geothermal energy

The effect of temperature on the mechanical behaviour of Strathbogie granite (fine-grained) was studied under unconfined stress conditions. Fracturing behaviour of test specimens was studied using an acoustic emission (AE) detection system and some crack propagation was also performed using electron microscopy scanning (SEM). The stress–strain curves showed plastic and post-peak behaviour for temperatures above 800 °C and the brittle–plastic...