| 三轴SHPB岩石材料动力学特性试验研究的现状和发展趋势 |
| |
| 引用本文： | 宫凤强,李夕兵,Jian,ZHAO,叶洲元.三轴SHPB岩石材料动力学特性试验研究的现状和发展趋势[J].科技导报(北京),2009,27(18):106-111. |
| |
| 作者姓名： | 宫凤强 李夕兵 Jian ZHAO 叶洲元 |
| |
| 作者单位： | 宫凤强(中南大学资源与安全工程学院,长沙,410083;瑞士洛桑联邦理工大学岩石力学实验室,瑞士洛桑,CH-1015);李夕兵(中南大学资源与安全工程学院,长沙,410083);Jian ZHAO(瑞士洛桑联邦理工大学岩石力学实验室,瑞士洛桑,CH-1015);叶洲元(湖南科技大学能源与安全工程晕院,湖南,湘潭,41201) |
| |
| 基金项目： | 国家自然科学基金项目，《科技导报》"博士生创新研究资助计划"项目，中南大学研究生学位论文创新选题资助项目 |
| |
| 摘 要： | 岩石材料的三维动力特性试验研究是岩石冲击动力学中很重要的一个领域,也是目前研究的一个热点.本文论述了三轴SHPB岩石力学试验机的研制情况,对各类试验机的特点进行了比较.综合分析了三轴SHPB试验相关研究文献,总结了一些共有规律:①在围压一定的情况下,岩石的动态抗压强度会随着应变率的增加而增加,呈现出线性函数或者指数函数增加形式,并且脆性减弱,塑性显著增加;②在应变率一定的情况下,岩石抗压强度会随着围压的增大而增大,线性关系比较显著:③岩石动静组合加载时,在轴压一定时,岩石的动静组合抗压强度会随着围压的增大而增大,呈现出近似线性增加趋势;在围压固定时,抗压强度随着轴向静压的增大呈现出先增大后减小的趋势.由于SHPB试验装置和岩石材料本身的特点.目前在一些基本问题上.如加载应力波形、试样尺寸要求等方面.还没有统一的试验规范要求,很多试验结果只能进行定性比较.无法在统一尺度上进行定量分析.最后,针对该领域的发展趋势进行了论述,指出尽快建立一套国际性的建议试验方法是将来的一个关键问题.
|
| 关 键 词： | 岩石材料 三轴分离式Hopkinson压杆装置 冲击 动力特性 |
Experimental Research Progress of Dynamic Characteristics for Rock Materials on Triaxial SHPB Apparatus |
| |
| GONG Fengqiang,LI Xibing,ZHAO Jian,YE Zhouyuan .School of Resources , Safety Engineering,Central South University,Changsha ,China .Rock Mechanics Laboratory,Swiss Federal Institute of Technology Lausanne,Lausanne CH-,Switzerl, .School of Energy & Safety Engineering,Hunan University of Science & Technology,Xiangtan ,Hunan Province,China.Experimental Research Progress of Dynamic Characteristics for Rock Materials on Triaxial SHPB Apparatus[J].Science & Technology Review,2009,27(18):106-111. |
| |
| Authors: | GONG Fengqiang LI Xibing ZHAO Jian YE Zhouyuan School of Resources Safety Engineering Central South University Changsha China Rock Mechanics Laboratory Swiss Federal Institute of Technology Lausanne Lausanne CH- Switzerl School of Energy & Safety Engineering Hunan University of Science & Technology Xiangtan Hunan Province China |
| |
| Institution: | GONG Fengqiang1,2,LI Xibing1,ZHAO Jian2,YE Zhouyuan3 1.School of Resources , Safety Engineering,Central South University,Changsha 410083,China 2.Rock Mechanics Laboratory,Swiss Federal Institute of Technology Lausanne,Lausanne CH-1015,Switzerl, 3.School of Energy & Safety Engineering,Hunan University of Science & Technology,Xiangtan 411201,Hunan Province,China |
| |
| Abstract: | The study of three-dimensional dynamic characteristics of the rock materials is an important filed and hot topic in rock dynamic mechanics.The historical developments of triaxial SHPB apparatus were reviewed and the characteristics of various types of testing machines were compared.A comprehensive analysis of related research literatures on triaxial SHPB tests and some common conclusions were summarized:(1)the dynamic compressive strength of rock will increase with a linear or exponential function as strain... |
| |
| Keywords: | rock materials triaxial split Hopkinson pressure bar dynamic dynamic characteristics |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
