叶海旺,吴林,龙梅,雷涛

• 1:武汉理工大学资源与环境工程学院
• 2:武汉理工大学矿物资源加工与环境湖北省重点实验室
• 3:武汉理工大学图书馆

摘要(Abstract)：

为研究层理面数和冲击载荷对层状板岩动力破坏特性影响,利用LS-DYNA有限元软件模拟了层状板岩试件在不同冲击速度下的SHPB实验,再现了SHPB实验过程中的加载波形和层状板岩试件的破坏过程,模拟结果与实验结果吻合度较好。研究结果表明:层状板岩试件的耗散能量随层理面数的增加而增加,双层、三层和四层板岩试件相比单层板岩试件耗散能量的增长分别为0.2%、0.4%和1.87%;试件破坏开始于端面周边,滞后于应力峰值,当冲击速度为6.5 m/s时,层状岩石试件以轴向劈裂破坏为主,冲击速度为12 m/s和20 m/s时试件的破坏模式为轴向劈裂破坏、径向剪破坏和端面拉压破坏的混合破坏。

关键词(KeyWords)： 层状板岩;SHPB;层理面;耗散能量;数值模拟

Abstract:

Keywords:

基金项目(Foundation): 湖北省自然科学基金青年基金资助项目(2016CFB336);; 贵州省科技计划项目(20172803)

作者(Author): 叶海旺,吴林,龙梅,雷涛

参考文献(References)：

• [1]WU Y K,HAO H,ZHOU Y X,et al.Propagation characteristics of blast-induced shock waves in a jointed rock mass[J].Soil Dynamics and Earthquake Engineering,1998,17(6):407-412.
• [2]叶海旺,周建敏,余红兵,等.岩体结构面对爆破地震波传播规律影响分析[J].爆破,2016,33(1):12-18.[2]YE Hai-wang,ZHOU Jian-min,YU Hong-bing,et al.Influe-nce of rock structure planes on propagation of blasting seismic wave[J].Blasting,2016,33(1):12-18.(in Chinese)
• [3]胡时胜.霍普金森压杆技术[J].兵器材料科学与工程,1991(11):40-47.[3]HU Shi-sheng.SHPB technique[J].Ordnance Material Science and Engineering,1991(11):40-47.(in Chinese)
• [4]刘红岩,邓正定,王新生,等.节理岩体动态破坏的SHPB相似材料试验研究[J].岩土力学,2014,35(3):659-665.[4]LIU Hong-yan,DENG Zheng-ding,WANG Xin-sheng,et al.Similar material test study of dynamic failure of jointed rock mass with SHPB[J].Rock and Soil Mechanics,2014,35(3):659-665.(in Chinese)
• [5]李超,刘红岩,阎锡东.动载下节理岩体破坏过程的数值试验研究[J].岩土力学,2015,36(S1):655-664.[5]LI Chao,LIU Hong-yan,YAN Xi-dong.Numerical experiment of failure process of jointed rock mass under dynamic loading[J].Rock and Soil Mechanics,2015,36(S1):655-664.(in Chinese)
• [6]ZHAO Y,ZHAO G F,JIANG Y,et al.Effects of bedding on the dynamic indirect tensile strength of coal:Laboratory experiments and numerical simulation[J].International Journal of Coal Geology,2014,132(1):81–93.
• [7]李地元,邱加冬,李夕兵.冲击载荷作用下层状砂岩动态拉压力学特性研究[J].岩石力学与工程学报,2015,34(10):2091-2097.[7]LI Di-yuan,QIU Jia-dong,LI Xi-bing.Experimental study on dynamic tensile and compressive properties of bedding sandstone under impact loading[J].Chinese Journal of Rock Mechanics and Engineering,2015,34(10):2091-2097.(in Chinese)
• [8]平琦,马芹永,卢小雨,等.被动围压条件下岩石材料冲击压缩试验研究[J].振动与冲击,2014,33(2):55-59.[8]PING Qi,MA Qin-yong,LU Xiao-yu,et al.Impact compression test of rock material under passive confining pressure conditions[J].Chinese Journal of Rock Mechanics and Engineering,2015,34(10):2091-2097.(in Chinese)
• [9]THABET A,HALDANE D.Three-dimensional numerical simulation of the behavior of standard concrete est specimens when subjected to impact loading[J].Computers&Structures,2001,79(1):21-31.
• [10]TENG Tsoliang,CHU Yi'an,CHANG Fwu'an,et al.Simulation model of reinforced concrete[J].Cement and Concrete Research,2004,34(11):2067-2077.
• [11]TAI Yuhshiou,TANG Chiachih.Numerical simulation:the dynamic behavior of reinforced concrete plates under normal impact[J].Theoretical and Applied Fracture Mechanics,2006,45(2):117-127.
• [12]李夕兵,古德生,赖海辉.冲击载荷下岩石动态应力-应变全图测试中的合理加载波形[J].爆炸与冲击,1993,13(2):125-130.[12]LI Xi-bing,GU De-sheng,LAI Hai-hui.On the reasonable loading stress waveforms determined by dynamic stress-strain curves of rock by SHPB[J].Explosion and Shock Waves,1993,13(2):125-130.(in Chinese)
• [13]纪冲,龙源,万文乾.弹丸侵彻钢纤维混凝土数值模拟[J].解放军理工大学学报,2005,6(5):459-463.[13]JI Chong,LONG Yuan,WAN Wen-qian.Numerical simulation of projectile penetrating into steel fiber reinforced concrete[J].Journal of PLA University of Science and Technology,2005,6(5):459-463.(in Chinese)
• [14]HOLMQUIST T J,JHHNSON G R,COOK W H.A computational constitutive model for concrete subjective to large strain,high strain rates,and high pressure[C]∥The 14th International Symposium on Ballistic.Quebec,Canada,1993:591-600.
• [15]Ls-dyna keyword user's manual VOLUME II Material Models[Z].America:Livermore Software Technology Corporation,2003:607-609.
• [16]方秦,孔祥振,吴昊,等.岩石Holmquist-JohnsonCook模型参数的确定方法[J].工程力学,2014,31(3):197-204.[16]FANG Qin,KONG Xiang-zhen,WU Hao,et al.Determination of Holmquist-Johnson-Cook constitutive model parameters of rock[J].Engineering Mechanics,2014,31(3):197-204.(in Chinese)
• [17]焦楚杰,李祯,高乐.混凝土SHPB试验的数值模拟[J].工程力学,2010,27(S2):196-200.[17]JIAO Chu-jie,LI Zhen,GAO Le.Numerical simulation of SHPB test of concrete[J].Engineering Mechanics,2010,27(S2):196-200.(in Chinese)
• [18]尚晓江,苏建宇,王化锋,等.ANSYS/LS-DYNA动力分析方法与工程实例[M].2版.北京:中国水利水电出版社,2008.
• [19]李明,茅献彪.冲击载荷作用下砂岩破坏及能量耗变率效应的数值模拟研究[J].爆破,2014,31(2):78-83.[19]LI Ming,MAO Xian-biao.Numerical simulation studies on strain rate effect of sandstone's energy dissipation and destruction under impulse loading[J].Blasting,2014,31(2):78-83.(in Chinese)
• [20]翟越,马国伟,赵均海,等.花岗岩和混凝土在单轴冲击压缩荷载下的动态性能比较[J].岩石力学与工程学报,2007,26(4):762-768.[20]ZHAI Yue,MA Guo-wei,ZHAO Jun-hai,et a;.Comparison of dynamic capabilities of granite and concrete under uniaxial impact compressive loading[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(4):762-768.(in Chinese)