Adhesively bonded high strength steel axial crush tube investigation

粘合高强度钢轴向挤压管研究

• 批准号: 469715-2014
• 负责人: Cronin, Duane
• 金额: $ 4.64万
• 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: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=598461
• 关键词: Adhesively; bonded; strength; steel; axial

Joining ultra-high strength steel for vehicle structural components is a challenging application for advanced structural adhesives due to surface coatings and the aggressive loading conditions these materials may encounter in crash scenarios. As designs move towards multi-material vehicle platforms to achieve significant weight reductions, these ultra-high strength steel materials will invariably be joined with other lightweight materials requiring innovative joining methods. High toughness structural adhesives provide a viable option for joining dissimilar materials and addressing significant issues such as corrosion in multi-material assemblies. Of critical importance to the adoption of structural adhesives in vehicle structures is the ability to model or analyze these joints in the vehicle design process. This study will investigate adhesive material characterization and implementation in a finite element code. Physical axial crush tube test samples will be assembled using advanced structural adhesives and tested quasi-statically and dynamically in a crash environment. Numerical models of the structures including the measured adhesive mechanical properties will be used to assess numerical modeling approaches. This research will enable implementation of advanced adhesives in a modeling environment to support the integration and use of adhesives in designs, and to provide near-term solutions for implementation.

由于表面涂层和这些材料在碰撞情况下可能遇到的侵蚀性载荷条件，连接车辆结构部件的超高强度钢对于高级结构粘合剂来说是一个具有挑战性的应用。随着设计转向多材料车辆平台以实现显著的重量减轻，这些超高强度钢材料将不可避免地与其他需要创新连接方法的轻质材料连接。高韧性结构粘合剂为连接不同材料并解决多材料组件中的腐蚀等重大问题提供了可行的选择。在车辆结构中采用结构粘合剂的关键是在车辆设计过程中对这些接头进行建模或分析的能力。本研究将探讨胶粘剂材料的表征和实施的有限元代码。将使用先进的结构粘合剂组装物理轴向挤压管测试样品，并在碰撞环境中进行准静态和动态测试。包括测量的粘合剂机械性能的结构的数值模型将用于评估数值建模方法。这项研究将使先进的粘合剂在建模环境中的实施，以支持粘合剂在设计中的集成和使用，并提供实施的短期解决方案。