On mode I and mode II energy release rates of an interface crack
โ Scribed by M. Toya
- Publisher
- Springer Netherlands
- Year
- 1992
- Tongue
- English
- Weight
- 304 KB
- Volume
- 56
- Category
- Article
- ISSN
- 1573-2673
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โฆ Synopsis
The opening (mode I) and sliding (mode II) components of the energy that is released during an incremental extension of an interface crack between two different elastic materials are evaluated by the Irwin's crack closure method. Each component of the energies (G~ and G~) is expressed in terms of the functions of the length of the incremental crack extension (Aa) and the real and imaginary part of the complex stress intensity factor defined by Malyshev and Salganik.
It is found that values of G~/Aa and G~/Aa oscillate violently when Aa approaches zero and that, hence, in contrast with the case for homogeneous materials, each energy release rate should be defined as G~/Aa and G~/Aa for an actual crack growth step size.
๐ SIMILAR VOLUMES
The strain energy release rate components G, and G,, in mode I and mode II at the tip of an interface crack in a bimaterial plate under tension in a direction normal to the interface were evaluated using finite element analysis and Modified Crack Closure Integral (MCCI) technique. Three models, name
For an incompressible body, the Cartesian coordinates x i and yi correspond, respectively, to the initial and current configuration. A plane deformation of the body is represented by the mapping yi = x i +di (1 where d is the displacement component. The deformation gradient is and the Jacobian de
AI&met---The purpose of this study is to use integral transforms to discuss the problem of a central crack at the interface between two dissimilar orthotropic layers for the mode I and 1I.t We shall find that the solution to the stress intensity factor is independent of material constants and that t