Fracture dynamics problems of mode i semi-infinite crack for anisotropic orthotropic body

摘要

By means of the theory of complex functions, fracture dynamics problems of mode I semi- infinite crack for anisotropic orthotropic body were researched. Analytical solutions of stress, displacement, and dynamic stress intensity factor under the action of moving increasing loads Px_3/t_3, Pt_4/x_3, respectively, are very easily obtained utilizing the approaches of self-similar functions. In the light of relevant material's coefficients, the alterable rule of dynamic stress intensity factor was depicted very well. The correlative closed solutions are attained based on the Riemann-Hilbert problems. After those analytical solutions were applied by the superposition principle, the solutions of discretional complex problems could be attained.