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Mitigation measures for low velocity impact damage of composite laminates

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Document pages: 16 pages

Abstract: Fiber reinforced polymer laminates are vulnerable to impact damage in manufacturing, normal operation, maintenance and or other stages of their life cycle. The occurrence and development of this damage leads to the rapid loss of structural integrity and strength of laminates. Such damage is often difficult to detect and repair. Therefore, it is very important to find preventive solutions. There have been a lot of studies on the impact damage evolution of composite laminates and the methods to reduce and mitigate the damage initiation and propagation. In this paper, different strategies for the development of new composites to reduce low velocity impact damage of thin plates studied by several research groups are revieweded composites. Hybrid composites, composites with tough thermoplastic resins, modified matrices, surface modification of fibres, translaminar reinforcements, and interlaminar modifications such as interleaving, short fibre reinforcement, and particle based interlayer are discussed in this article. A critical evaluation of various techniques capable of enhancing impact performance of laminated composites and future directions in this research field are presented in this article.

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