|
|
|
| Ultrasonic fracturing of brittle solids with an internal crack based on 3D-ILC method |
| WANG Haijun1，YU Shuyang2，LI Hanzhang1，REN Ran3，TANG Lei1，ZHU Wenwei2#br# |
(1. State Key Laboratory of Hydrology-Water Resource and Hydraulic Engineering，Nanjing Hydraulic Research Institute，Nanjing，Jiangsu 210029，China；2. Collaborative Innovation Centre for Water Safety and Water Science，Hohai University，Nanjing，
Jiangsu 210098，China；3. MCC Huatian Corporation，Nanjing，Jiangsu 210019，China)
|
|
|
|
Abstract In order to reveal the evolution of crack propagation and penetration in brittle solids under the action of ultrasonic field，the 3D-ILC method is introduced to ultrasonic fracturing tests for the first time，with different excitation durations and ultrasonic powers. The ultrasonic fracturing mechanism was revealed by analyzing the characteristics of fracture surfaces. The crack propagation path under different ultrasonic parameters was obtained through numerical simulation based on the Paris fatigue model and compared with the experimental results. The results show that 3D-ILC method is a powerful tool for ultrasonic fracturing research. Under the action of ultrasonic filed，cracks propagate along the tip，and the fracture surface shows the characteristics of shellfish veins and has powder locally. It can be judged that the ultrasonic fracturing mechanism includes ultra-high cycle/high cycle fatigue fracture，friction and temperature load. Ultrasonic action on solids is concentrated on original pre-cracked surfaces and no damage occurs in the intact region，which indicates that the ultrasonic action has “crack priority”. The area of crack propagation is positively correlated with the ultrasonic action time and ultrasonic power. Numerical simulation using the Paris fatigue model reveals that crack propagation is proportional to load amplitude and cycle number and that the crack propagation path is consistent with the test results. 3D-ILC provides a new means for the experimental and theoretical research of ultrasonic fracturing. Compared to traditional numerical methods based on the analysis of stress-strain and plastic zone，adopting numerical simulation to obtain the crack path under ultrasonic fracturing provides a good complement.
|
|
|
|
|
|
[1] 尹崧宇，赵大军. 超声波振动下不同应力条件对岩石强度影响的试验[J]. 吉林大学学报：地球科学版，2019，49(3)：756–762. (YIN Songyu，ZHAO Dajun. Experimental study on the effect of different stress conditions on rock strength under ultrasonic vibration[J]. Journal of Jilin University：Geoscience，2019，49(3)：756–762.(in Chinese))
[2] 赵丽娟. 超声波作用下的煤层气吸附一解吸规律实验[J]. 天然气工业，2016，36(2)：21–25.(ZHAO Lijuan. Experiment on adsorption and desorption of coalbed methane under ultrasonic wave[J]. Natural Gas Industry，2016，36(2)：21–25.(in chinese))
[3] 吴昌军. 超声波促进页岩气解吸及改善渗流特性的机制和实验研究[硕士学位论文][D]. 成都：西南石油大学，2014.(WU Changjun. Mechanism and experimental study on ultrasonic promoting shale gas desorption and improving seepage characteristics[M. S. Thesis][D]. Chengdu：Southwest University of Petroleum，2014.(in Chinese))
[4] 肖晓春，丁 鑫，徐 军，等. 超声作用下煤岩细观损伤演化模型及增渗机制研究[J]. 天然气地球科学，2016，27(1)：166–172. (XIAO Xiaochun，DING Xin，XU Jun，et al. Study on meso-damage evolution model and seepage enhancement mechanism of coal and rock under ultrasonic action[J]. Natural Gas Geoscience，2016，27(1)：166–172.(in Chinese))
[5] 田家勇，王恩福. 基于声弹理论的地应力超声测量方法[J]. 岩石力学与工程学报，2006，25(增2)：3 719–3 724.(TIAN Jiayong，WANG Enfu. Ultrasonic measurement method of ground stress based on acoustoelastic theory[J]. Journal of Rock Mechanics and Engineering，2006，25(Supp.2)：3 719–3 724.(in Chinese))
[6] 路 斌，严炽培. 超声波提高油气渗流速度的机制研究[J]. 石油钻采工艺，1992，(5)：51–56. (LU Bin，YAN Zhipei. Study on the mechanism of ultrasonic wave improving oil and gas seepage velocity[J]. Petroleum Drilling and Production Technology，1992，(5)：51–56.(in Chinese))
[7] 王 鹏，许金余，刘 石，等. 热损伤砂岩力学与超声时频特性研究[J]. 岩石力学与工程学报，2014，33(9)：1 897–1 904.(WANG Peng，XU Jinyu，LIU Shi，et al. Study on mechanics and ultrasonic time-frequency characteristics of thermal damaged sandstone[J]. Journal of Rock Mechanics and Engineering，2014，33(9)：1 897–1 904.(in Chinese))
[8] 高文学，胡江碧，刘运通，等. 岩石动态损伤特性的实验研究[J]. 北京工业大学学报，2001，(1)：108–111.(GAO Wenxue，HU Jiangbi，LIU Yuntong，et al. Experimental study on dynamic damage characteristics of rock[J]. Journal of Beijing University of Technology，2001，(1)：108–111.(in Chinese))
[9] 孙梓航，赵大军，孙永辉，等. 高频振动回转顶驱的研制[J]. 探矿工程：岩土钻掘工程，2013，40(11)：39–41.(SUN Zihang，ZHAO Dajun，SUN Yonghui，et al. Development of high-frequency vibration rotary top drive[J]. Prospecting Works：Geotechnical Drilling，2013，40(11)：39–41.(in Chinese))
[10] 翟国兵，赵大军，张金宝，等. 制冷液温度对地下冷冻墙制冷效果影响的有限元分析[J]. 探矿工程：岩土钻掘工程，2015，42(6)：53–58.(ZHAI Guobin，ZhAO Dajun，ZhANG Jinbao，et al. Finite element analysis of the effect of refrigerating liquid temperature on refrigeration effect of underground freezing wall[J]. Prospecting Engineering：Geotechnical drilling Engineering，2015，42(6)：53–58.(in Chinese))
[11] 黄家根，汪海阁，纪国栋，等. 超声波高频旋冲钻井技术破岩机制研究[J]. 石油钻探技术，2018，46(4)：23–29.(HUANG Jiagan，WANG Haige，JI Guodong，et al. Study on rock breaking mechanism of ultrasonic high frequency rotary drilling technology[J]. Oil Drilling Technology，2018，46(4)：23–29.(in Chinese))
[12] 田家勇，满元鹏，谢周敏，等. 岩石应力对钻孔附近的弹性波波速的影响[J]. 国际地震动态，2008，(11)：40.(TIAN Jiayong，MAN Yuanpeng，XIE Zhoumin，et al. Effect of rock stress on elastic wave velocity near drilling[J]. International Seismic Dynamics，2008，(11)：40.(in Chinese))
[13] 王海军，张九丹，任 然，等. 基于激光–介质损伤的三维内裂纹3D-ILC 实现[J]. 岩土工程学报，2019，41(12)：2 345–2 352. (WANG Haijun，ZhANG Jiudan，REN Ran，et al. Embedded cracks in brittle solids induced by laser-medium interaction(3D-ILC) [J]. Journal of Geotechnical Engineering，2019，41(12)：2 345–2 352. (in Chinese))
[14] ADAMS M，SINES G. Crack extension from flaws in a brittle material subjected to compression[J]. Tectonophysics，1978，49(1)：97–118.
[15] DYSKIN A V，JEWELL R J，JOER H，et al. Experiments on 3D crack growth in uniaxial compression[J]. International Journal of Fracture，1994，65(4)：77–83.
[16] 付金伟，朱维申，雒祥宇，等. 含三维内置断裂面新型材料断裂体破裂过程研究[J]. 中南大学学报：自然科学版，2014，45(9)：3 257–3 263.(FU Jinwei，ZHU Weishen，LUO Xiangyu，et al. Study on fracture process of new material with three-dimensional built-in fracture surface[J]. Journal of Central South University：Natural Science，2014，45(9)：3 257–3 263.(in Chinese))
[17] 鞠 杨，谢和平，郑泽民，等. 基于3D打印技术的岩体复杂结构与应力场的可视化方法[J]. 科学通报，2014，59(32)：3 109–3 119. (JU Yang，XIE Heping，ZHENG Zemin，et al. Visualization of the complex structure and stress field inside rock by means of 3D printing technology[J]. Chinese Science Bulletin，2014，59(32)：3 109–3 119.(in Chinese))
[18] 刘华博. 预制裂纹类岩石材料裂纹扩展规律及3D打印技术应用[博士学位论文][D]. 北京：中国矿业大学(北京)，2018.(LIU Huabo. Crack propagation law of prefabricated crack rock materials and application of 3D printing technology[Ph. D. Thesis][D]. Beijing：China University of Mining and Technology(Beijing)，2018.(in Chinese))
[19] 王海军，张九丹，任 然，等. 基于3D-ILC含不同角度内裂纹圆盘断裂特性研究[J]. 岩土工程学报，2019，41(9)：1 636–1 644. (WANG Haijun，ZHANG Jiudan，REN ran，et al. Study on fracture characteristics of disk with different angles of internal crack based on 3D-ILC[J]. Journal of Geotechnical Engineering，2019，41(9)：1 636– 1 644.(in Chinese))
[20] 王海军，郁舒阳，任 然，等. 基于3D-ILC含内裂纹孔口脆性固体断裂特性试验[J]. 岩土力学，2019，40(6)：2 200–2 212.(WANG Haijun，YU Shuyang，REN Ran，et al. Based on the test of brittle solid fracture characteristics of holes with internal cracks in 3D-ILC[J]. Rock and Soil Mechanics，2019，40(6)：2 200–2 212. (in Chinese))
[21] 李世愚. 岩石断裂力学导论[M]. 合肥：中国科学技术大学出版社，2010：6–7.(LI Shiyu. Introduction to rock fracture mechanics[M]. Hefei：Press of University of Science and Technology of China，2010：6–7.(in Chinese))
[22] 李庆辉，陈 勉，金 衍，等. 页岩脆性的室内评价方法及改进[J]. 岩石力学与工程学报，2012，31(8)：1 680–1 685.(LI Qinghui，CHEN Mian，JIN Yan，et al. Indoor evaluation method for shale brittleness and improvement[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(8)：1 680–1 685.(in Chinese))
[23] 钟群鹏. 金属疲劳断口宏观定量分析综述[J]. 兵器材料科学与工程，1987，(4)：7–21.(ZHONG Qunpeng. A review of macroscopic quantitative analysis of metal fatigue fracture[J]. Weapons Materials Science and Engineering，1987，(4)：7–21.(in Chinese))
[24] PARIS P，ERDOGAN F. A critical analysis of crack growthlaws[J]. Journal of Basic Engineering，Transaction of the ASME，1963，85：528–534. |
|
|
|
2020, Vol. 39 
