The order of stress singularities for bonded and disbonded three-material junctions

摘要: Abstract In-plane solutions are given for the order of stress singularity at an internal point in elastic, isotropic solid where three wedges different materials meet. The interfaces either all perfectly bonded or a disbond is introduced along one interface. One feature this three-material junction that not present corresponding two-material case, each interface geometrically and, therefore, singular behavior dependent on which disbonded. Each material and geometrical combination therefore gives rise to four problems, with perfect bonding interfaces, cases disbond. Numerical results presented selected junctions. New junctions serve as special study also presented.