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A BIEM optimization method for fracture dynamics inverse problem. (English) Zbl 0865.73042

Summary: Based on the theory of dynamic boundary integral equations, an optimization method for crack identification is set up in the Laplace frequency space, where the direct problem is solved by a new type of boundary integral equations, and a method for choosing the high sensitive frequency region is proposed. The results show that the method proposed is successful in using the information on boundary elastic waves and in overcoming the ill-posedness.

MSC:

74R99 Fracture and damage
74P99 Optimization problems in solid mechanics
74S15 Boundary element methods applied to problems in solid mechanics
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References:

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