Abstract
For predicting delamination propagation and fatigue failure of laminated composite plate accurately, a modified virtual crack closure-integral technique (VCCT) was used for calculating strain energy release rate and mode-mixity for orthotropic interface crack problems. The modified VCCT was formulated first and then integrated into the superposition finite element method (S-FEM) to obtain the strain energy release rate (SERR) and extract the components in different modes. Finally the validity of the technique in calculating SERE and mode-mixity, and extracting SERR components was verified by using an interface crack model.
| Original language | English |
|---|---|
| Pages (from-to) | 210-213 |
| Number of pages | 4 |
| Journal | Guti Huojian Jishu/Journal of Solid Rocket Technology |
| Volume | 32 |
| Issue number | 2 |
| State | Published - Apr 2009 |
| Externally published | Yes |
Keywords
- Delamination
- Mode-mixity
- Strain energy release rate (SERR)
- Virtual crack closure-integral technique (VCCT)