Coupled continuum damage mechanics and failure envelope method for failure prediction of composite multi-bolt joints
| Autor: | Boling He, Dongyun Ge |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Polymers and Plastics business.industry Mechanical Engineering Composite number 02 engineering and technology Structural engineering 021001 nanoscience & nanotechnology 020303 mechanical engineering & transports 0203 mechanical engineering Continuum damage mechanics Mechanics of Materials Envelope method Materials Chemistry Ceramics and Composites Composite material 0210 nano-technology business |
| Zdroj: | Journal of Reinforced Plastics and Composites. 36:563-578 |
| ISSN: | 1530-7964 0731-6844 |
| Popis: | A numerical strategy, based on continuum damage mechanics and the failure envelope method, is proposed for failure prediction of composite multi-bolt joints. First, the design parameters of the failure envelope are determined by virtual tests of simple structures. Then, a modified failure envelope incorporating the bending effect is constructed. Finally, different bearing-to-bypass stress ratios and the influence of bolt rows on the bending effect are discussed. It is shown that the failure envelope with constant bearing-to-bypass stress ratio, obtained by assuming uniform bolt load distribution, is recommended. And the bending effect of single-lap, composite multi-bolt joints is alleviated by the introduction of more bolt rows. These results indicate that failure prediction of composite multi-bolt joints, using the proposed numerical strategy, exhibits excellent agreement with the experimental outcomes. This demonstrates that the numerical strategy is feasible. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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