AImtractmsmall crack d~ection in brittle functionally graded materials (FGMs) is studied. The FGMs are modeled as simply nonhomogeneous materials, i,e., the effect of microstructurΒ’ is neglected and the material property variation is considered to be continuous. Considering local homogeneity and the
A mode III crack in functionally graded piezoelectric materials
β Scribed by B.L. Wang
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 114 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0093-6413
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β¦ Synopsis
This paper considers the mode III crack problem in functionally graded piezoelectric materials. The mechanical and the electrical properties of the medium are considered for a class of functional forms for which the equilibrium equations have an analytical solution. The problem is solved by means of singular integral equation technique. Both a single crack and a series of collinear cracks are investigated. The results are plotted to show the effect of the material inhomogeneity on the stress and the electric displacement intensity factors.
π SIMILAR VOLUMES
One of the main interests of fracture mechanics in functionally graded materials is the influence of such an inhomogeneity on crack propagation processes. Using the Griffith' energy principle, the change of energy has to be calculated, if the crack starts to propagate. In homogeneous linear-elastic