Evaluation of fracture mechanics parameters for a general corner using a weight function method
The weight function method is extended to general opening corner problem. The two-dimensional singular fields for displacements and stresses are introduced in terms of generalized Bueckner's strength. By means of eigenvalue analysis the stress intensity factors are then formulated after appropriate splitting the regular stress and displacement fields into symmetric and antisymmetric modes. Using Betti's reciprocal theorem, a new expression in a more general closed form is derived for Bueckner's strength consistent with the given nonzero opening case.
scientific article; zbMATH DE number 63872