Mechanical behaviour predictions for viscoelastic polymer matrix composites under high temperature and multi-axial conditions and experimental validation

高温多轴条件下粘弹性聚合物基复合材料的力学行为预测及实验验证

• 批准号: 327094-2011
• 负责人: Lévesque, Martin
• 金额: $ 1.97万
• 依托单位: École Polytechnique de Montréal
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=526819
• 关键词: Mechanical; behaviour; predictions; viscoelastic; polymer

Composite materials are increasingly used in high performance applications, like in aircraft engines and fuselage. The materials are subjected to complex multi-axial stress states and to time-varying temperatures. These service conditions make accurate prediction of their mechanical behaviour a challenging task. Accurate predictive models are of considerable interest to the aerospace industry since they can reduce the number of iterations required for obtaining the final component. In addition, having precise tools allows reducing the design safety factors, which leads to lighter structures. Lighter structures require less energy for being moved, which has a direct impact on the environment.

复合材料越来越多地用于高性能应用，如飞机发动机和机身。材料承受复杂的多轴应力状态和随时间变化的温度。 这些服务条件使得准确预测其机械性能成为一项具有挑战性的任务。准确的预测模型是相当感兴趣的航空航天工业，因为它们可以减少获得最终组件所需的迭代次数。此外，拥有精确的工具可以降低设计安全系数，从而使结构更轻。更轻的结构需要更少的能量来移动，这对环境有直接的影响。