Modal behavior of post low velocity impact flax/epoxy composite structures
| Autor: | Khouloud Srihi, Zakaria Zergoune, Nadia Massé, Garip Genc, Ali El Hafidi |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Vibroengineering PROCEDIA. 43:46-51 |
| ISSN: | 2538-8479 2345-0533 |
| Popis: | Natural fibers are increasingly used for polymer composite intending to minimize the environmental impact. Bio-composite materials are increasingly being used in industrial transport structures, including aerospace and automotive. Natural fiber reinforces composites with equivalent performances of glass fiber composites, have higher amount of fiber, resulting in less pollution and much lighter weight, which reduces the fuel consumption. Also, they offer the ability to design complex parts and high mechanical properties structures. Barely visible impact damage (BVID) represent a serious threat to the efficiency of bio-composite materials. In this paper, modal analysis was used to investigate and evaluate the impact-induced damage of flax/epoxy composite plates. The vibratory behavior is an indicator of the structural health monitoring of composite materials. Natural frequency, damping loss factors and displacement pattern, named mode shapes, are studied in order to detect damage and anticipate perilous consequences through time. |
| Databáze: | OpenAIRE |
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