Integrity analysis of advanced composites after lightning strike

先进复合材料雷击后的完整性分析

• 批准号: DP150100531
• 负责人: Prof Lin Ye
• 金额: $ 23.68万
• 依托单位: The University of Sydney
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2015
• 资助国家: 澳大利亚
• 起止时间: 2015-02-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP150100531
• 关键词: Integrity; analysis; advanced; composites; after

Lightning strike presents a great threat to various engineered structures made of fibre-reinforced polymer composites. This project aims to develop fundamentals for a framework of integrity analysis for such composites after lightning strike. This involves mechanistic models for coupled electrical-thermal-mechanical analysis and experimental characterisation, addressing intensive resistant-heat generation, pyrolysis of matrices and ablation of fibres, pore gas explosion, shock stresses and prediction of residual strength. The expected outcomes of the project are critical for the development of procedures for enhanced structural integrity assessment, driving down maintenance costs and extending the life-span of engineered composite structures.

雷击对纤维增强聚合物复合材料制成的各种工程结构构成了极大的威胁。该项目旨在为雷击后此类复合材料的完整性分析框架开发基础。这涉及耦合电-热-机械分析和实验表征的机械模型，解决了密集的电阻热生成、基质热解和纤维烧蚀、孔隙气体爆炸、冲击应力和剩余强度预测。该项目的预期成果对于制定加强结构完整性评估的程序、降低维护成本和延长工程复合结构的寿命至关重要。