Enabling the development of safe lightweight next-generation vehicles using high-performance composite materials

使用高性能复合材料开发安全、轻量的下一代汽车

• 批准号: 507776-2016
• 负责人: Montesano, Giovanni
• 金额: $ 14.45万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=694170
• 关键词: Enabling; development; safe; lightweight; next

The proposed research aims to investigate the potential for substantial weight reduction of front end automotive structural components using high performance carbon fiber reinforced plastic (CFRP) composite materials fabricated by a rapid high pressure resin transfer moulding (HP-RTM) process. These materials are known for their high specific strength and stiffness characteristics, low densities (1.5 g/cm3) and high energy absorption capabilities under crash conditions, and have been identified as key materials for enabling substantial weight reductions in mass market vehicles. Although high performance CFRP composites have not been integrated into frontal crash structures of automobiles to date due to high cost and manufacturing time constraints, newly developed processing techniques such as HP-RTM can provide the required rapid production rates that will allow the realization of CFRPs into mass-market vehicles. The research will address fundamental material characterization and part fabrication processing challenges in order to develop an accurate impact simulation platform, which will be required to integrate high performance lightweight CFRP composites into energy absorbing structures of next-generation automobiles. The inherent processing defects will be assessed, and coupled to the highly complex deformational response of the CFRP composite in order to predict impact performance of CFRP parts. As a validation, fabricated CFRP parts with differing geometries representative of frontal vehicle structures will be tested under various loading conditions and the model predictions will be assessed against the experiments.

拟议的研究旨在调查使用通过快速高压树脂传递模塑（HP-RTM）工艺制造的高性能碳纤维增强塑料（CFRP）复合材料大幅减轻前端汽车结构部件重量的潜力。这些材料以其高比强度和刚度特性、低密度 (1.5 g/cm3) 和碰撞条件下的高能量吸收能力而闻名，并已被确定为能够大幅减轻大众市场车辆重量的关键材料。尽管由于高成本和制造时间限制，高性能 CFRP 复合材料迄今为止尚未集成到汽车的正面碰撞结构中，但 HP-RTM 等新开发的加工技术可以提供所需的快速生产率，从而将 CFRP 实现为大众市场车辆。该研究将解决基本的材料表征和零件制造加工挑战，以开发精确的冲击模拟平台，将高性能轻质 CFRP 复合材料集成到下一代汽车的能量吸收结构中。将评估固有的加工缺陷，并将其与 CFRP 复合材料的高度复杂的变形响应相结合，以预测 CFRP 零件的冲击性能。作为验证，将在各种负载条件下测试代表车辆正面结构的具有不同几何形状的制造 CFRP 零件，并根据实验评估模型预测。