Numerical simulation on the impacting and comminuting of coal based on LS-DYNA

• 作 者: 李芳玮 李艳焕 徐振亮 金龙哲
• 机 构: SchoolofCivilandEnvironmentEngineering,CollegeofCivilEngineeringandArchitecture,InstituteofVocationa
• 出 处: 煤炭学报：英文版
• 发表日期: 2008年4期
• 关键词: 煤体 压裂特性 弹性力学 煤矿开采 LS-DYNA FEM impact and comminute contact-impact numerical

<正> Simulated comminution that the coal impact rigid wall using finite element soft- ware of explicit formulation based on dynamics model of elastic collision (Hamilton varia- tionnal principle),the critical velocity of the coal impacting comminutio