深部大理岩真三轴力学特性离散元和有限差分耦合分析OA北大核心CSTPCD
Analysis on true triaxial mechanical properties of deep marble by using a discrete element-finite difference coupling method
为了研究深部大理岩的动态力学特性,首先基于离散元PFC(particle flow code)和有限差分FLAC(fast Lagrangian analysis of continua)耦合法,对大理岩的细观参数进行标定.接着,对三维分离式霍普金森压杆(split Hopkinson pressure bar,SHPB)冲击模拟中的动态应力平衡条件及均匀性假设进行数值验证.最后,对真三轴应力环境下大理岩的应力-应变响应、破碎特征及能量演化机理等…查看全部>>
To study the dynamic mechanical properties of deep marble,the micro parameters of deep marble were calibrated based on the coupling method of discrete element (particle flow code,PFC) and finite difference (fast Lagrangian analysis of continua,FLAC). Then,the dynamic stress equilibrium condition and uniformity assumption in the simulated three-dimensional split Hopkinson pressure bar (SHPB) test are numerically validated. Finally,an in-depth analysis is cond…查看全部>>
王志亮;余浪浪
合肥工业大学土木与水利工程学院,安徽合肥 230009合肥工业大学土木与水利工程学院,安徽合肥 230009
力学
深部大理岩真三轴条件力学特性破碎形态耦合分析
deep marbletrue triaxial conditionmechanical propertyfragmentation shapecoupling analysis
《爆炸与冲击》 2024 (7)
124-136,13
国家自然科学基金(12272119,U1965101)
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