LSIMPACT: Life-like Resilient Materials for Mitigating Liquid-Solid Impact Damage

LSIMPACT：用于减轻液固冲击损伤的逼真弹性材料

• 批准号: EP/Y037103/1
• 负责人: Wei Tan
• 金额: $ 161.87万
• 依托单位: Queen Mary University of London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2024
• 资助国家: 英国
• 起止时间: 2024 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FY037103%2F1
• 关键词: LSIMPACT; Life; like; Resilient; Materials

The collision between a high-velocity liquid mass and a solid can generate destructive stress waves. Predicting the damage caused by liquid-solid impact (LSI) is a longstanding multidisciplinary challenge with important implications, from leading-edge erosion of wind turbine blades, and bird strikes on aircraft to traumatic brain injuries in crash events. In order to reduce the LSI damage on materials, a fundamental understanding of the liquid impact damage mechanisms, and radically new impact-resistant materials are required. LSIMPACT aims to unravel the liquid-solid impact damage mechanisms via innovative experimental and computational methods, thereby guiding the development of new impact-resistant materials. The complex phenomenon involving material heterogeneity, strain rate effect and hygrothermal environmental conditions significantly hinders the understanding of LSI damage mechanisms. LSIMPACT will overcome this barrier by developing new liquid impact testing facilities and multiphysics computational models. The fundamental understanding of LSI damage mechanisms will guide the development of impact-resistant materials with hierarchical architectures. The hierarchical structures will be further empowered with self-healing functions to create "life-like" materials that can respond to stimuli (crack or damage). Data-driven methods will be used to accelerate the prototype optimisation of life-like materials. To achieve this, LSIMPACT will: 1. Explore the liquid-solid impact damage behaviours of heterogeneous materials via new impact testers. 2. Propose new multiphysics computational models to accurately predict the liquid-solid impact behaviours of heterogeneous materials and unveil the liquid-solid impact damage mechanisms. 3. Create life-like impact-resistant materials by integrating self-healing materials and hierarchical structures. 4. Develop a data-driven framework to optimise life-like resilient materials and manufacture prototypes for field tests.

高速液体和固体之间的碰撞会产生破坏性的应力波。预测液-固碰撞（LSI）造成的损伤是一个长期存在的多学科挑战，具有重要意义，从风力涡轮机叶片的前缘侵蚀，到飞机上的鸟撞，再到坠机事件中的创伤性脑损伤。为了减少大规模集成电路对材料的损伤，需要对液体冲击损伤机理有基本的了解，并需要全新的抗冲击材料。 LSIMPACT旨在通过创新的实验和计算方法揭示液-固冲击损伤机制，从而指导新型抗冲击材料的开发。材料非均匀性、应变率效应和湿热环境条件等复杂现象严重阻碍了对大规模集成电路损伤机理的理解。LSIMPACT将通过开发新的液体冲击测试设施和多物理场计算模型来克服这一障碍。对LSI损伤机制的基本理解将指导具有分层结构的抗冲击材料的开发。这种分层结构将进一步赋予自我修复功能，以创造出能够对刺激（裂纹或损坏）做出反应的“类生命”材料。数据驱动的方法将用于加速类生命材料的原型优化。为了实现这一目标，LSIMPACT将：1。通过新型冲击试验机探索非均质材料的液-固冲击损伤行为。2.提出新的多物理场计算模型，准确预测非均质材料的液-固冲击行为，揭示液-固冲击损伤机理。3.通过整合自我修复材料和层次结构，创造出栩栩如生的抗冲击材料。4.开发一个数据驱动的框架，以优化逼真的弹性材料，并制造原型进行现场测试。