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| Research on Stiffness Reduction of Cross-ply Laminate after Multi-damages |
| Received:October 14, 2010 Revised:April 15, 2011 |
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| DOI： |
| KeyWord:FRP stiffness fatigue damage matrix crack fibre breakage |
| Author | Institution |
| ZHANG Tai-feng |
Qingdao Branch of Navy Aeronautic Engineering Academy，Qingdao ，China |
| YANG Xiao-hua |
Qingdao Branch of Navy Aeronautic Engineering Academy，Qingdao ，China |
| ZHANG Yong |
Qingdao Branch of Navy Aeronautic Engineering Academy，Qingdao ，China |
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| Abstract: |
| Meso-mechanical analysis was carried out on FRP cross-ply laminate. A model was established to describe the stiffness reduction of the laminate with coexistence of cracks damage and fibre breakage. The calculation method of fibre breakage was put forward and the stiffness reduction process of the laminate was calculated. The simulation results showed that the proposed model has good capacity to describe the stiffness reduction of FRP laminate with a few parameter; the simulation results is in consistence with test result. |
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