基于数字图像技术的相似材料试样破坏试验研究
Destruction test of similar material sample based on digital image technology
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摘要: 为了能够直观地反应相似材料试样表面裂隙演化的过程及裂隙的位置、形状等信息，利用沙、水泥、石膏等材料制作相似材料试样，以非接触应变测量系统观测并研究单轴压缩状态下相似材料试样破坏的全过程。试验结果表明：与传统试验方法相比，数字图像相关技术具有明显优势，以该方法得到的全场应变云图可以较好的反映相似材料试样在破坏过程中裂纹的演化特征；通过对相似材料试样表面“X”状变形集中带取测点，利用VIC-3D分析软件分析各个测点的应变曲线，得到了试样表面变形集中带的变形特征；通过对各个阶段相似材料试样径向及轴向应变速率进行比较，得到了各个阶段试样表面应变速率的变化特征。Abstract: In order to intuitively reflect the evolution process of the cracks on the surface of similar material samples and the location and shape of the cracks, sand, cement, gypsum and other materials are used to make similar material samples, and the non-contact strain measurement system is used to observe and study the uniaxial compression state, the whole process of the destruction of samples of similar materials. The test results show that compared with the traditional test method, the digital image correlation technology has obvious advantages. The full-field strain cloud image obtained by this method can better reflect the evolution characteristics of the cracks in the failure process of the similar material samples; the “X”-shaped deformation concentrated zone on the sample surface is taken to measure points, and the strain curve of each measuring point is analyzed by VIC-3D analysis software, and the deformation characteristics of the deformation concentrated zone on the sample surface are obtained; compared with the axial strain rate, the change characteristics of the surface strain rate of the specimen at each stage are obtained.
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Keywords:
- fracture evolution /
- uniaxial compression /
- similar materia /
- non-contact /
- strain rate
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[1] 袁修竹，范映冲，彭博，等.原岩应力现场与实验室测试对比研究[J].煤炭技术，2020，39（03）：68-71. YUAN Xiuzhu, FAN Yingchong, PENG Bo, et al. Comparative study of in-situ and laboratory tests of rock stress[J]. Coal Technology, 2020，39（3）: 68-71.
[2] 何富连，郑铮，杨增强，等.基于主应力差影响的底板应力分布状态研究[J].煤矿安全，2019，50（11）:67. HE Fulian, ZHENG Zheng, YANG Zengqiang, et al. Study on stress distribution state of floor based on the influence of principal stress difference[J]. Safety in Coal Mines, 2019，50（11）: 67.
[3] 刘啸.深井动压影响下山煤巷围岩变形机理与控制研究[J].中国安全生产科学技术，2019，15（11）:130. LIU Xiao. Study on mechanism and control of surrounding rock deformation of dip coal roadway affected by dynamic pressure in deep well[J]. Journal of Safety Science and Technology, 2019，15（11）: 130.
[4] 杨建华，吴泽南，姚池，等.地应力对岩石爆破开裂及爆炸地震波的影响研究[J].振动与冲击，2020，39（13）：64-70. YANG Jianhua, WU Zenan, YAO Chi, et al. Influences of in-situ stress on blast-induced rock fracture and seismic waves[J]. Journal of Vibration and Shock, 2020, 39（13）: 64-70.
[5] 谭卓英，夏志远，丁宇，等.深部岩体地应力场分异特性研究[J].岩石力学与工程学报，2019，38（S2）: 3330. TAN Zhuoying, XIA Zhiyuan, DING Yu, et al. Differentiation characteristics of insitu stress in deep rock[J]. Chinese Journal of Rock Mechanics and Engineering, 2019, 38（S2）: 3330-3337.
[6] 赵振，刘传孝，马德鹏，等.预制裂隙煤样损伤破坏力学及声发射特征分析[J].矿业研究与开发，2019，39（1）：63-67. ZHAO Zhen, LIU Chuanxiao, MA Depeng, et al. Analysis of damage and failure mechanism and acoustic emission characteristics of coal samples with prefabricated cracks[J]. Mining Research and Development，2019, 39（1）: 63-67.
[7] 崔力，张民波，王金宝，等.不同围压下煤岩损伤变形规律及声发射特征分析[J].中国安全生产科学技术，2019，15（10）：18-24. CUI Li, ZHANG Minbo, WANG Jinbao, et al. Analysis on damage deformation laws and acoustic emission characteristics of coal rock under different confining pressures[J]. China Work Safety Science and Technology, 2019, 15（10）: 18-24.
[8] 宋远，李化敏，刘闯.不同层理方向煤岩单轴压缩声发射特征试验[J].煤矿安全，2018，49（11）：39. SONG Yuan, LI Huamin, LIU Chuang. Experimental research on acoustic emission characteristics of coal rock with different bedding directions under uniaxial compression[J]. Coal Mine Safety, 2018, 49（11）: 39.
[9] 孟令超，徐荣超，王安明，等.单轴压缩下两种脆性岩石强度及声发射特性的试验研究[J].工程地质学报，2020（6）：1178-1185. MENG Lingchao, XU Rongchao, WANG Anming, et al. Characteristics of strength and acoustic emission of granite and marble under uniaxial compression[J]. Journal of Engineering Geology, 2020（6）: 1178-1185.
[10] 王笑然，李楠，王恩元，等.岩石裂纹扩展微观机制声发射定量反演[J].地球物理学报，2020，63（7）：2627. WANG Xiaoran, LI Nan, WANG Enyuan, et al. Microcracking mechanisms of sandstone from acoustic emission source in version[J]. Chinese Journal of Geophysics, 2020, 63（7）: 2627-2643.
[11] 王创业，常新科，杜晓娅.砂岩单轴压缩破坏全过程声发射主频特征分析[J].地下空间与工程学报，2020，16（2）:451-462. WANG Chuangye, CHANG Xinke, DU Xiaoya. Analysis on dominant-frequency characteristics of acoustic emission in sandstone uniaxial compression failure[J]. Chinese Journal of Underground Space and Engineering, 2020，16（2）: 451-462.
[12] 毛伟泽，吕庆，郑俊，等.基于CT图像的花岗岩矿物组分与细观结构分析[J/OL].工程地质学报:1[2020-06-19]. https://doi.org/10.13544/j.cnki.jeg.2020-121. MAO Weize, LU Qing, ZHENG Jun, et al. Analysis of mineral composition and meso-structure of granite using CT images[J/OL]. Journal of Engineering Geology:1[2020-06-19]. https://doi.org/10.13544/j.cnki.jeg.2020-121.
[13] 赵建鹏，崔利凯，陈惠，等.基于CT扫描数字岩心的岩石微观结构定量表征方法[J].现代地质，2020，34（6）：1205-1213. ZHAO Jianpeng, CUI Likai, CHEN Hui, et al. Quantitative characterization of rock microstructure of digital core based on CT scanning[J].Geoscience, 2020，34（6）:1205-1213.
[14] 王俊光，杨鹏锦，金峤.动静加载条件下泥岩蠕变及细观破裂机制分析[J].中国矿业大学学报，2019，48（6）：1223-1229. WANG Junguang, YANG Pengjin, JIN Qiao. Mudstone creep experiment and meso mechanical analysis of failure mechanism under cyclic disturbance load static load[J]. Journal of china university of mining and technology, 2019，48（6）:1223-1229.
[15] 陶明，汪军，李占文，等.冲击荷载下花岗岩层裂断口细-微观试验研究[J].岩石力学与工程学报，2019， 38（11）：2172. TAO Ming, WANG Jun, LI Zhanwen, et al. Meso-and micro-experimental research on the fracture of granite spallation under impact loads[J]. Chinese Journal of Rock Mechanics and Engineering, 2019, 38（11）: 2172.
[16] 刘希灵，刘周，李夕兵，等.劈裂荷载下的岩石声发射及微观破裂特性[J].工程科学学报，2019，41（11）：1422-1432. LIU Xiling, LIU Zhou, LI Xibing, et al. Acoustic emission and micro-rupture characteristics of rocks under Brazilian splitting load[J]. Chinese Journal of Engineering, 2019, 41（11）: 1422-1432.
[17] 李凯，何志鹏，谢建文.数字图像技术在岩土工程中的应用综述[J].地质与资源，2020，29（1）：106. LI Kai, HE Zhipeng, XIE Jianwen. The application of digital image techniques in geotechnical researches: a review[J]. Geology and Resources, 2020, 29（1）: 106.
[18] 马永尚，陈卫忠，杨典森，等.基于三维数字图像相关技术的脆性岩石破坏试验研究[J].岩土力学，2017， 38（1）:117-123. MA Yongshang, CHEN Weizhong, YANG Diansen, et al. Experimental study of brittle rock failure based on three-dimensional digital image correlation technique[J]. Rock and Soil Mechanics, 2017, 38（1）: 117-123.
[19] 王鹏鹏，郭晓霞，桑勇，等.基于数字图像相关技术的砂土全场变形测量及其DEM数值模拟[J].工程力学，2020，37（1）：239-247. WANG Pengpeng, GUO Xiaoxia, SANG Yong, et al. Full-field deformation measurement of sand using the digital image correlation technique and numerical simulation using the discrete element method[J]. Engineering Mechanics, 2020, 37（1）: 239 -247.
[20] 宋义敏，邢同振，吕祥锋，等.不同加载速率Ⅰ型预制裂纹花岗岩断裂特征研究[J].岩土力学，2018，39（12）:4369-4376. SONG Yimin, XING Tongzhen, LU Xiangfeng, et al.Fracture characteristics of granite with mode-I pre-crack at different loading rates[J]. Rock and Soil Mechanics, 2018, 39（12）: 4369-4376.
[21] 宋义敏，张悦，许海亮，等.岩石摩擦滑动位移场时空演化特征研究[J].岩石力学与工程学报，2018，37（8）：1777-1784. SONG Yimin, ZHANG Yue, XU Hailiang, et al. Temporal and spatial characteristics of displacement field of rock friction and sliding[J]. Chinese Journal of Rock Mechanics and Engineering, 2018, 37（8）: 1777-1784.
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