Energy dissipation characterisation in dynamic brittle fracture

动态脆性断裂的能量耗散表征

• 批准号: DP230100749
• 负责人: Prof Luming Shen
• 金额: $ 30.11万
• 依托单位: The University of Sydney
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2023
• 资助国家: 澳大利亚
• 起止时间: 2023-04-03 至 2026-04-02
• 项目状态: 未结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP230100749
• 关键词: Energy; dissipation; characterisation; dynamic; brittle

Energy dissipation in dynamic fracture of brittle materials is pivotal in mining, civil engineering and defence. The project aims to develop a novel experimentally-validated multiscale theory, with associated models, for characterising and predicting the complete dynamic fracture process of brittle materials. This theory is expected to generate close-to-reality simulations critical for understanding fundamental aspects of energy dissipation in dynamic fracture. The outcomes will enable an optimised control of the fragment size in block cave mining and mineral processing, forecast and prevent fatal rock bursts in underground mines, and minimise catastrophic failures in critical infrastructures challenged by extreme loading, e.g. explosions.

脆性材料动态断裂中的能量耗散在采矿，土木工程和防御方面至关重要。该项目旨在开发一种具有相关模型的实验验证的多尺度理论，以表征和预测脆性材料的完整动态断裂过程。预计该理论将产生对理解动态断裂中能量耗散基本方面至关重要的接近现实模拟。这些结果将能够优化对块洞穴采矿和矿物质加工，预测并防止地下矿山中致命岩石爆发的优化控制，并最大程度地减少受到极端负载挑战的关键基础设施中的灾难性故障，例如。爆炸。