Fracture investigation of V-notch made of tungsten-copper functionally graded materials

Resumo

The fracture of V-notches with end holes made of tungsten-copper functionally graded material under mode I has been studied in this paper. The averaged strain energy density over a well-defined control volume was employed to predict the fracture loads. A numerical approach was used to determine the outer boundary of the control volume. Mechanical properties such as elasticity modulus, Poisson’s ratio, fracture toughness K_Ic, and ultimate tensile stress have been considered to obey the power law function through the specimen width.