| Popis: |
Mixed-mode stress intensity factor solutions are presented for two parallel, but not necessarily coplanar, interacting surface cracks in a plate. The plate is subjected to a remote uniaxial stress acting normal to the crack planes. The crack separation distances, measured normal and parallel to the crack planes, are varied to provide 24 crack geometries. The smallest separation distance is equal to a quarter of the plate thickness. The equal sized interacting cracks have fixed depth-to-thickness ratios of 0.5 and fixed half-width-to-depth ratios of 3. The finite element alternating method is used to develop the solutions. The tendency for the cracks to grow apart or to coalesce is discussed. |
