A method for thermo-mechanical analysis of steady state dynamic crack growth

摘要: Cracks propagating at high speeds in metals generate heat their tips which cannot be conducted away the very short time span of crack growth. The effect heating on tip stress fields and dynamic fracture toughness is analyzed using a method based theory generalized analytic functions. In this all deviations from linear elastic, homogeneous strain field are represented as fictitious body forces, allowing one to model inelastic thermal effects. Numerical computations performed assuming steady-state, plane stress, mode-I growth with fixed temperature field, but rate sensitive mechanical properties. relationship between intensity factor velocity has been determined competing ductile brittle criteria. A careful analysis trailing wake study its field.