高应变率冲击荷载下节理花岗岩损伤机制研究OA北大核心CSTPCD
Damage mechanism of jointed granite under high strain rate impact loading
针对冲击荷载作用下贯通节理花岗岩动力响应特征和能量演化规律这一研究目标,以含不同倾角节理花岗岩为研究对象,基于不同倾角节理岩体损伤力学理论模型,开展了高应变率下不同节理倾角花岗岩的分离式霍普金森压杆(split Hopkinson pressure bar,简称SHPB)冲击试验,完成了高应变率下花岗岩的损伤特征研究,获取了岩体动态力学性质和能量耗散特征.研究结果表明:(1)基于Druck-Prager准则和Weibull强度分布准则,结合弹性波…查看全部>>
To study the dynamic response characteristics and energy evolution of through-jointed granite under impact load,granite with different dip joints was selected as the research object.Using the theoretical model of damage mechanics for jointed rock masses with varying dip angles,a series of SHPB(split Hopkinson pressure bar)impact tests was conducted on granite samples under high strain rates.The dynamic mechanical properties and energy dissipation characteris…查看全部>>
王智德;钱梦凡;李杰;司莹莹;江俐敏
武汉理工大学土木工程与建筑学院,湖北武汉 430070武汉理工大学土木工程与建筑学院,湖北武汉 430070武汉理工大学土木工程与建筑学院,湖北武汉 430070||武汉市勘察设计有限公司,湖北武汉,430000武汉理工大学土木工程与建筑学院,湖北武汉 430070武汉职业技术学院建筑工程学院 湖北武汉,430074
土木建筑
不同倾角节理花岗岩SHPB冲击试验能量耗散高应变率
different dip anglesjointed graniteSHPB impact testenergy dissipationhigh strain rate
《岩土力学》 2024 (7)
1917-1928,12
国家自然科学基金(No.42077228,No.51374163)磷资源开发利用教育部工程研究中心开放基金资助(No.LKF202004)武汉市城乡建设委员会科技计划项目(武城建[2017]12号-201740,武城建[2019]68号-201941).This work was supported by the National Natural Science Foundation of China(42077228,51374163),the Open Project of Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education(LKF202004)and the Science and Technology Program of Wuhan Municipal Urban-Rural Development Bureau([2017]12-201740,[2019]68-201941).
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