In recent years, the materials used in machines and structures are becoming increasingly sophisticated due to demands for use under extreme environments (in space, under high temperature, under high pressure) and for high performance (micronization, weight reduction, longer life). In order to use the materials safely, expanding the knowledge about these materials and understanding the phenomena that occur to these materials in the form of tests and experiments are necessary. Our laboratory carries out research related to material fracture based on solid mechanics by conducting studies on deformation and strength.