Title

Near-tip out of plane displacement fields for dynamic crack propagation in functionally graded materials

Document Type

Article

Date of Original Version

9-1-2002

Abstract

Asymptotic expansion for the out of plane displacement field around a crack propagating along the gradient in a functionally graded material is developed. The irregular behavior of one of the terms in the expansion at low crack speeds is further examined and a remedial solution, which is well behaved at low crack speeds, is proposed. The developed out of plane displacement field is used to estimate stress intensity factor from quasi-static finite element solution. The results indicate that inclusion of the proposed nonhomogeneity specific terms gives estimates of stress intensity factor, which are consistent with existing analytical predictions.

Publication Title

Mechanics Research Communications

Volume

29

Issue

5

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