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An efficient dual boundary element technique for a two-dimensional fracture problem with multiple cracks. (English) Zbl 0870.73076
The paper presents a boundary element formulation for two-dimensional fracture mechanics problems based on the already established mixed (or dual according to some authors) formulations. The technique adopts the hypersingular (or traction) integral equation over one side of the crack surface and selects the crack opening displacements (relative displacements) for interpolation. Alternative means of computing the finite part integrals are discussed, and examples of multicrack (up to four cracks) problems are also presented to illustrate the accuracy of the procedure.

MSC:
74S15 Boundary element methods applied to problems in solid mechanics
74R99 Fracture and damage
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