A modified Paris relation for fatigue delamination with fibre bridging in composite laminates
| Autor: | René Alderliesten, Meiying Zhao, Yi Sun, Rinze Benedictus, Liaojun Yao, Licheng Guo, Liyong Jia |
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| Rok vydání: | 2017 |
| Předmět: |
Fiber pull-out
Bridging (networking) Materials science business.industry 02 engineering and technology Structural engineering Composite laminates 021001 nanoscience & nanotechnology Similitude 020303 mechanical engineering & transports 0203 mechanical engineering Ceramics and Composites Scale dependent Composite material 0210 nano-technology business Civil and Structural Engineering |
| Zdroj: | Composite Structures. 176:556-564 |
| ISSN: | 0263-8223 |
| DOI: | 10.1016/j.compstruct.2017.05.070 |
| Popis: | The aim of present research is to determine fatigue delamination with fibre bridging in composite laminates. Both the Paris relation and the Hartman-Schijve equation were employed to explore fatigue delamination behavior. The use of the Paris relation can result in fatigue delamination growth being crack scale dependent. This dependence was significantly reduced in case of using the Hartman-Schijve relation in data reduction. This difference can lead to controversies on fatigue delamination behavior in composite laminates. To address this dispute, a new parameter, which was consistent with the hypothesis of similitude as well as damage mechanisms, was introduced to represent the similitude in fatigue delamination growth. A modified Paris relation based on this parameter was proposed and used to determine fatigue delamination. And a master resistance curve was obtained to determine fatigue delamination growth with different amounts of fibre bridging. Thus, fatigue delamination is crack scale independent, if the similitude is well characterized. And in the Paris region, the modified Paris relation can provide good predictions in fatigue delamination growth with fibre bridging. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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