Abstract
Based on Reissner plate theory, a novel model is proposed to analyze the buckling behavior of a circular or annular delaminated thin film on an elastic substrate. Elastic deformation in the substrate is calculated by using three coupled-line-springs distributed along the edge of the delaminated film. The shooting method is used to solve the nonlinear post-buckling problem. The energy release rate and phase angle are obtained. The results demonstrate that if the aspect ratio of delamination size to film thickness is not large enough, the Reissner plate theory should be used to have more accurate solutions.
| Original language | English |
|---|---|
| Pages (from-to) | 1479-1491 |
| Number of pages | 13 |
| Journal | Engineering Fracture Mechanics |
| Volume | 77 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - Jun 2010 |
Keywords
- Energy release rate
- Indentation delamination test
- Phase angle
- Reissner plate theory
- Thin film
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