Experimentally validated physics-based multi-scale models for long-term durability assessment of next-generation lightweight composite vehicles

经过实验验证的基于物理的多尺度模型，用于下一代轻质复合材料车辆的长期耐久性评估

• 批准号: RGPIN-2016-03978
• 负责人: Montesano, Giovanni
• 金额: $ 1.68万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=638651
• 关键词: Experimentally; validated; physics; based; multi

For decades transportation vehicles have utilized polymer matrix composite (PMC) materials for secondary structural components, including aircraft aerodynamic fairings and interior automobile panels, due to their high strength and low weight when compared to metallic alloys. Only in recent years have they been utilized for primary structures, which stems from economic and societal concerns pressuring manufacturers to develop lighter fuel-efficient vehicles. Consequently, the long-term reliability of PMCs is now highly important, in particular for components with fatigue critical performance indicators such as automobile chassis side beams and aircraft wing spars. However, there exists a major scientific gap for addressing their performance under complex loading conditions.

几十年来，运输车辆一直使用聚合物基复合材料 (PMC) 来制造二级结构部件，包括飞机空气动力学整流罩和汽车内饰板，因为与金属合金相比，聚合物基复合材料具有高强度和低重量的特点。直到最近几年，它们才被用于主要结构，这源于经济和社会问题迫使制造商开发更轻的节能车辆。因此，PMC 的长期可靠性现在非常重要，特别是对于具有疲劳关键性能指标的部件，例如汽车底盘侧梁和飞机翼梁。然而，在复杂负载条件下解决其性能方面存在重大科学差距。