The immersed-body gas-solid interaction model for blast analysis in fractured solid media

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• 作者：P. Yang^a ; J. Xiang^a ; ^b ; ^{j.xiang@imperial.ac.uk} ; M. Chen^b ; F. Fang^a ; D. Pavlidis^a ; J.-P. Latham^a ; C.C. Pain^a
• 关键词：Blasting ; Cracking and fragmentation ; Gas-solid interaction ; Immersed-body method ; Shock wave modelling
• 刊名：International Journal of Rock Mechanics and Mining Sciences
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：91
• 期：Complete
• 页码：119-132
• 全文大小：3147 K
• 卷排序：91

文摘

Blast-induced fractures are simulated by a model, which combines an immersed-body method and a cohesive zone fracture model. A complete gas-solid interaction model simulates the whole blasting process. The JWL equation of state is introduced to resolve the relationship between the pressure and density of the detonation gas. This model can be applied to complex blasts and explosions, e.g. rock blasting, cutting, mining and tunneling industries. This model pave a way to complete numerical simulation of blasts, which can be used for fragmentation analysis.