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.

脆性材料动态断裂过程中的能量耗散问题在采矿、土木工程和国防等领域具有重要意义.该项目旨在开发一种新的实验验证的多尺度理论，与相关的模型，用于表征和预测脆性材料的完整动态断裂过程。这一理论预计将产生接近现实的模拟理解动态断裂中的能量耗散的基本方面至关重要。这些成果将能够优化控制块体洞穴采矿和矿物加工中的碎片尺寸，预测和预防地下矿山的致命岩爆，并最大限度地减少受极端负载（例如爆炸）挑战的关键基础设施的灾难性故障。