不同加载边界下混凝土巴西劈裂过程及强度的DIC实验分析

徐纪鹏; 董新龙; 付应乾; 俞鑫炉; 周风华

doi:10.6052/0459-1879-19-303

不同加载边界下混凝土巴西劈裂过程及强度的DIC实验分析

^*宁波大学冲击与安全工程教育部重点实验室, 浙江宁波 315211
^†北京理工大学机电学院, 北京 100081

基金项目: 1)国家自然科学基金资助项目(11390361)

详细信息

中图分类号: O346.1⁺1
计量
- 文章访问数: 01954
- HTML全文浏览量: 0494
- PDF下载量: 0195
出版历程
- 收稿日期: 2019-11-01
- 刊出日期: 2020-06-09

EXPERIMENTAL ANALYSIS OF PROCESS AND TENSILE STRENGTH FOR CONCRETE BRAZILIAN SPLITTING TEST WITH DIFFERENT LOADING BOUNDARIES BY DIC METHOD

^*MOE Key Laboratory of Impact and Safety Engineering, Ningbo University, Ningbo 315211, Zhejiang, China
^†School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China

摘要

摘要: 平板、垫条、圆弧压模及平台试样等不同加载方式下, 脆性材料巴西劈裂实验结果的差异一直是人们所讨论的问题. 本文设计了混凝土平板直接加载与采用垫条加载实验, 采用理论、高速相机与数字图像相关法(digital image correlation, DIC)相结合的方法, 对试样表面应变场演化、起裂位置及裂纹扩展过程进行分析, 探讨了不同的加载边界对试样应变集中演化及劈裂拉伸强度结果的影响. 结果显示: (1)混凝土拉伸非线性特性导致的应变集中演化对不同加载条件非常敏感, 平板加载时应变集中较早在加载端起始并向中心演化, 即使满足巴西实验"中心起裂"条件, 其强度仍低于垫条加载情况, 两者差别达17.9%; (2)如果软垫条加载接触角合理设计, 与平板直接加载相比, 其应力场更稳定, 有利于保证圆盘试样的应变集中及断裂均从中心起始, 更好满足巴西劈裂实验条件; (3)仅校验巴西实验 "中心起裂"有效性条件是不充分的, 设计时必须谨慎考虑. 研究结果对脆性材料巴西劈裂实验设计、测试分析具有重要参考意义.
- 巴西劈裂 /
- 加载边界 /
- 混凝土 /
- 数值图像相关方法
Abstract: Brazilian splitting test was widely used in the evaluation of tensile strength of brittle materials, but the results of strength are difference with different loading boundaries, such as flat plates, bearing strips, arc die, and flattened Brazilian disc,which has always been a research focus. In this paper, the splitting test was designed under different loading boundaries of direct flat plates and bearing strips, and analyzed theoretically, carried out experimentally as well. By the high-speed camera and digital image correlation (DIC) method, the process of the evolution of strain field, crack initiation and propagation on the surface of the specimen were studied in the splitting test. The influence of different loading boundaries on the tensile strength and the strain concentration evolution were further discussed. The results show that: (1) The evolution characteristics of strain concentration caused by the nonlinear tensile properties of concrete are sensitive to loading conditions, which lead to strain concentration earlier from the loading ends and evolves to the center of the specimen when loaded by flat plates . In this case, even the experimental condition of "center cracking" is satisfied, its strength still lower than that of bearing strips, the difference can reach 17.9%; (2) As long as the contact angles of bearing strips loading is designed properly, the stress field of the specimen can develop stably than that of direct flat plate loading, which is conductive to ensure strain concentration as well as fracture starting from the center. It is better to meet the requirements of the Brazilian splitting test; (3) It is not sufficient to only verify the validity condition of "center cracking", which must be carefully considered in the test design and analysis. The research results have important reference significance for the design and test analysis of the Brazilian splitting experiment of brittle materials.
- Brazilian splitting test /
- loading boundaries /
- concrete /
- digital image correlation

HTML全文

参考文献(41)

Zhang QB, Zhao J.Determination of mechanical properties and full-field strain measurements of rock material under dynamic loads. International Journal of Rock Mechanics & Mining Sciences, 2013, 60: 423-439

王礼立, 胡时胜, 杨黎明等. 材料动力学. 合肥: 中国科学技术大学出版社, 2017
(Wang Lili, Hu Shisheng, Yang Liming, et al.Material Dynamic. Hefei: University of Science and Technology of China of Press, 2017 (in Chinese))

Lu YB, Li QM.About the dynamic uniaxial tensile strength of concrete-like materials. Int J Impact Eng, 2011, 38(4) : 171-180

Pandey P, Singh DP.Deformation of a rock in different tensile tests. Engineering Geology, 1986, 22: 281-292

Klepaczko JR, Brara A.An experimental method for dynamic tensile testing of concrete by spalling. International Journal of Impact Engineering, 2001, 25(4): 387-409

Carneiro FLLB.A new method to determine the tensile strength of concrete//Proceedings of the 5th Meeting of the Brazilian Association for Technical Rules, Brazil, 1943

ISRM. Suggested methods for determining tensile strength of rock materials. Int J Rock Mech Min Sci and Geomech Abstr, 1978, 15(1): 99-103

ASTM C496-86. Standard test method for splitting tensile strength of cylindrical concrete specimen. C496-86. Standard test method for splitting tensile strength of cylindrical concrete specimen. New York: American Society for Tesing Material, 1986

Kourkoulis SK, Markides CF, Chatzistergos PE.The standardized Brazilian disc test as a contact problem. International Journal of Rock Mechanics and Mining Sciences, 2013, 57: 132-141

Rocco C, Guinea GV, Planas J, et al.Review of the splitting-test standards from a fracture mechanics point of view. Cement and Concrete Research, 2001, 31(1): 73-82

王启智, 贾学明.平台巴西圆盘试样确定脆性岩石的弹性模量、拉伸强度和断裂韧度---第一部分: 解析与数值结果.岩石力学与工程学报, 2002, 21(9): 1285-1289
(Wang Qizhi, Jia Xueming.Determination of elastic modulus tensile strength and fracture toughness of brittle rocks by using flattened Brazilian disk specimen---Part I: Analytical and numerical results. Chinese Journal of Rock Mechanics and Engineering, 2002, 21(9): 1285-1289 (in Chinese))

王启智, 吴礼舟.用平台巴西圆盘试样确定脆性岩石的弹性模量、拉伸强度和断裂韧度---第二部分: 实验结果.岩石力学与工程学报, 2004, 23(2): 199-204
(Wang Qizhi, Wu Lizhou.Determination of elastic modulus tensile strength and fracture toughness of brittle rocks by using flattened Brazilian disk specimen---Part II: Experimental results. Chinese Journal of Rock Mechanics and Engineering, 2004, 23(2): 199-204 (in Chinese))

Ross CA, Thompson PY, Tedesco JW.Split-Hopkinson pressure-bar tests on concrete and mortar in tension and compression. Aci Materials Journal, 1989, 86(5): 475-481

García VJ, Márquez CO, Zúñiga-Suárez AR, et al.Brazilian test of concrete specimens subjected to different loading geometries: Review and new insights. International Journal of Concrete Structures and Materials, 2017, 11(2) : 343-363

Li D, Wong LNY.The Brazilian disc test for rock mechanics applications: Review and new insights. Rock Mechanics and Rock Engineering, 2013, 46(2): 269-287

Carmona S, Aguado A.New model for the indirect determination of the tensile stress-strain curve of concrete by means of the Brazilian test. Materials and Structures, 2012, 45: 1473-1485

侯成, 王志勇, 王志华. 基于修正最大切向应力准则的含中心直裂纹混凝土圆盘断裂行为研究. 中国科学: 技术科学, 2016(4): 377-386
(Hou Cheng, Wang Zhiyong, Wang Zhihua.Study on fracture behavior of concrete disc with central straight crack based on modified maximum tangential stress criterion. Chinese Science$:$ Technical Science, 2016(4): 377-386 (in Chinese))

宫凤强, 李夕兵.巴西圆盘劈裂试验中拉伸模量的解析算法.岩石力学与工程学报, 2010, 29(5): 881-891
(Gong Fengqiang, Li Xibing.Analytical algorithm to estimate tensile modulus in Brazilian disk splitting tests. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(5): 881-891 (in Chinese))

王启智, 李炼, 吴礼舟等. 改进巴西试验: 从平台巴西圆盘到切口巴西圆盘. 力学学报, 2017, 49(4): 793-801
(Wang Qizhi, Li Lian, Wu Lizhou, et al.Improvement of Brazilian test: From flattened Brazilian disc to grooved Brazilian disc. Chinese Journal of Theoretical and Applied Mechanics, 2017, 49(4): 793-801 (in Chinese))

Guo YB, Gao GF, Jing L, et al.Quasi-static and dynamic splitting of high-strength concretes tensile stress-strain response and effects of strain rate. International Journal of Impact Engineering, 2019, 125: 188-211

韩强, 屈展, 叶正寅等. 基于微米力学实验的页岩I型断裂韧度表征. 力学学报, 2019, 51(4): 1245-1254
(Han Qiang, Qu zhan, Ye Zhengyin, et al. Study on fracture toughness of mode I of shale based on micro-mechanical test. Chinese Journal of Theoretical and Applied Mechanics, 2019, 51(4): 1245-1254 (in Chinese))

Griffith AA.The phenomena of rupture and flow in solids. Philosophical Transactions of the Royal Society, 1921, 221: 163-198

邓华锋, 李建林, 朱敏等. 圆盘厚径比对岩石劈裂抗拉强度影响的试验研究. 岩石力学与工程学报, 2012, 31(4): 792-798
(Deng Huafeng, Li Jianlin, Zhu Min, et al.Research on effect of disc thickness-to-diameter ratio on splitting tensile strength of rock. Chinese Journal of Rock Mechanics and Engineering, 2012, 31(4): 792-798 (in Chinese))

Carmona S, Aguado A.New model for the indirect determination of the tensile stress--strain curve of concrete by means of the Brazilian test. Materials and Structures, 2012, 45: 1473-1485

喻勇. 质疑岩石巴西圆盘拉伸强度试验. 岩石力学与工程学报, 2005, 24(7): 1150-1157
(Yu Yong.Question the validity of the Brazilian test for determining tensile strength of rock. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(7): 1150-1157 (in Chinese))

Hondros G.The evaluation of Poisson's ratio and the modulus of materials of a low tensile resistance by Brazilian (indirect tensile) test with particular reference to concrete. Aust J Appl Sci, 1959, 10: 243-268

Ma CC, Hung KM.Exact full-field analysis of strain and displacement for circular disks subjected to partially distributed compressions. International Journal of Mechanical Sciences, 2008, 50(2): 275-292

Kourkoulis S, Markides CF, Chatzistergos P.The standardized Brazilian disc test as a contact problem. International Journal of Rock Mechanics and Mining Sciences, 2013, 57: 132-141

Yu Y, Zhang JX, Zhang JC.A modified Brazilian disk tension test. International Journal of Rock Mechanics & Mining Sciences, 2009, 46: 421-425

Wei XX, Chau KT.Three dimensional analytical solution for finite circular cylinders subjected to indirect tensile test. International Journal of Solids and Structures, 2013, 50: 2395-2406

Li DY, Wong LNY.The brazilian disc test for rock mechanics applications: Review and new insights. Rock Mechanics and Rock Engineering, 2013, 46(2): 269-287

徐根, 陈枫, 肖建清. 载荷接触条件对岩石抗拉强度的影响. 岩石力学与工程学报, 2006, 25(1): 168-173
(Xu Gen, Chen Feng, Xiao Jianqing.Influence of load contact condition on rock tensile strength. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(1): 168-173 (in Chinese))

俞鑫炉, 付应乾, 董新龙等. 混凝土一维应力层裂实验的全场DIC分析. 力学学报, 2019, 51(4): 1064-1072
(Yu Xinlu, Fu Yingqian, Dong Xinlong, et al.Full field DIC analysis of one-dimensional spall strength for concrete. Chinese Journal of Theoretical and Applied Mechanics, 2019, 51(4): 1064-1072 (in Chinese))

Tang T.Effects of load-distributed width on split tension of unnotched and notched cylindrical specimens. Journal of Testing and Evaluation, 1994, 22(5): 401-409

任会兰, 宁建国, 宋水舟等. 基于声发射矩张量分析混凝土破坏的裂纹运动. 力学学报, 2019, 51(6): 1830-1840
(Ren Huilan, Ning Jianguo, Song Shuizhou, et al.Investigation on crack growth in concrete by moment tensor analysis of acoustic emission. Chinese Journal of Theoretical and Applied Mechanics, 2019, 51(6): 1830-1840 (in Chinese))

铁摩辛柯, 古地尔. 弹性理论高等教育出版社. 徐芝纶译. 北京: 1990: 330
(Timshenco, Goodier.Elastic Theory. Xu Zhilun, transl. Beijing: Higher Education Press, 1990: 330(in Chinese))

Procopio AT, Zavaliangos A, Cunningham JC.Analysis of the diametrical compression test and the applicability to plastically deforming materials. Journal of Materials Science, 2003, 38: 3629-3639

MacGregor CW. The potential function method for the solution of two-dimensional stress problems. Transactions of the American Mathematical Society, 1933, 38: 177-186

Huang YG, Wang LG, Lu YL, et al.Semi-analytical and numerical studies on the flattened Brazilian splitting test used for measuring the indirect tensile strength of rocks. Rock Mechanics and Rock Engineering, 2014, 48(5): 1849-1866

Satoh Y.Position and load of failure by in Brazilian test: A numerical analysis by Griffith criterion. Journal of Materials Science, 1986, 140(36): 1219-1224

Mellor M, Hawkes I.Measurement of tensile strength by diametral compression of discs and snnuli. Engineering Geology, 1971, 5: 173-225

施引文献(77)

期刊类型引用(36)

1.	陈豪龙，唐欣越，王润华，周焕林，柳占立. 基于物理信息神经网络的多介质非线性瞬态热传导问题研究. 力学学报. 2025(01): 89-102 . 本站查看
2.	陈冲，朱啸宇，王芳，许雅倩，张伟. 物理引导的深度学习研究综述：进展、挑战和展望. 计算机科学与探索. 2025(02): 277-294 . 百度学术
3.	杜轲，吴文贤，林志鹏，骆欢. 基于物理驱动支持向量机方法的地震作用下结构动力响应求解. 振动与冲击. 2025(03): 284-290 . 百度学术
4.	苑光耀，王俊淞，赵玄烈，耿敬. 基于PINN的二维剪切流圆柱绕流场重构. 力学学报. 2025(02): 436-452 . 本站查看
5.	李如尧，张磊，庞博，旦真旺加，郑磊，刘英杰. 基于PINN的混凝土热学参数反演方法. 水利水电科技进展. 2025(02): 90-97+105 . 百度学术
6.	闫海波，张馨月. 深度神经网络优化Heston定价模型. 福建电脑. 2025(04): 9-14 . 百度学术
7.	刘东，田文喜，刘晓晶，郝琛，彭航，于洋，肖聪. 核工业人工智能科学计算新范式研究与展望. 核动力工程. 2025(02): 1-13+317 . 百度学术
8.	章静，王明军，田文喜，苏光辉，秋穗正. 人工智能算法在核反应堆热工水力预测分析中的初步探索. 核动力工程. 2025(02): 127-140 . 百度学术
9.	胡秋婧，王岩. 基于强化学习的串列双圆柱绕流减阻数值模拟. 气体物理. 2025(02): 39-49 . 百度学术
10.	董锦昊，董锦洋，唐怀平. 基于POD-神经网络的格尼襟翼压力分布预测. 力学学报. 2025(04): 829-842 . 本站查看
11.	蔡振荣. 基于神经网络的弹性力学位移计算方法研究. 科学技术创新. 2024(06): 104-107 . 百度学术
12.	郭远，傅卓佳，闵建，刘肖廷，赵海涛. 课程-迁移学习物理信息神经网络用于长时间非线性波传播模拟. 力学学报. 2024(03): 763-773 . 本站查看
13.	李道伦，沈路航，查文舒，邢燕，吕帅君，汪欢，李祥，郝玉祥，陈东升，陈恩源. 基于神经算子与类物理信息神经网络智能求解新进展. 力学学报. 2024(04): 875-889 . 本站查看
14.	彭杰，张玉武. 基于自适应神经网络的PDEs求解研究. 佳木斯大学学报(自然科学版). 2024(03): 174-177 . 百度学术
15.	齐占奎，张新鹏，刘旭亮，查文舒，李道伦. 一种基于一维卷积神经网络的试井模型智能识别方法. 油气井测试. 2024(02): 72-78 . 百度学术
16.	刘溢凡，马小敏，王志勇，王志华. 基于ANN的混凝土均匀化方法解析解. 应用数学和力学. 2024(05): 554-570 . 百度学术
17.	仲林林，王逸凡，任和，吴奇，韩汶轩，陈洪洪. 人工智能驱动的低温等离子体数值模拟研究综述. 高电压技术. 2024(07): 2879-2893 . 百度学术
18.	潘小果，王凯，邓维鑫. 基于NTK理论和改进时间因果的物理信息神经网络加速收敛算法. 力学学报. 2024(07): 1943-1958 . 本站查看
19.	邓书超，宋孝天，钟旻霄，李庆，孙亚楠，吕建成. 一种求解偏微分方程的动态平衡物理信息神经网络. 中国科学:信息科学. 2024(08): 1843-1859 . 百度学术
20.	韦昌，樊昱晨，周永清，张超群，刘欣，王赫阳. 基于Runge-Kutta的自回归物理信息神经网络求解偏微分方程. 力学学报. 2024(08): 2482-2493 . 本站查看
21.	刘云美，史正梅. PINNs在反演计算中影响因素的数值比较分析. 新乡学院学报. 2024(09): 14-21 . 百度学术
22.	石教炜，孙世岩. 基于物理信息神经网络的多重积分求解方法. 海军工程大学学报. 2024(05): 86-91 . 百度学术
23.	李道伦，查文舒，刘旭亮，李祥，沈路航，周霞，郝玉祥，汪欢. 深度学习网络在非常规油气开发中的应用研究. 非常规油气. 2024(06): 1-7 . 百度学术
24.	乔银春. 电子学中的偏微分方程解析系统设计. 电子技术. 2024(10): 94-95 . 百度学术
25.	赵至忱，王彦凯，丁铭. 二维稳态热传导方程的无监督自适应激活函数物理信息神经网络方法求解. 应用科技. 2024(05): 278-283 . 百度学术
26.	张博，盛海龙，杨超. 基于PFNN-2的偏微分方程参数反演. 数值计算与计算机应用. 2024(04): 301-313 . 百度学术
27.	郅朋，吴宇清. 基于离散单元法模拟颗粒流的图神经网络计算加速方法. 力学学报. 2024(12): 3601-3611 . 本站查看
28.	郑宗生，周文睆，王政翰，高萌，霍志俊，张月维. 基于物理约束和云图生成的台风等级预测方法. 激光与光电子学进展. 2024(24): 254-262 . 百度学术
29.	祝博，邱宇，张博文，张培宣，邱志平，李云龙. 基于智能方法的结构性能评估与优化设计技术. 人工智能. 2023(01): 88-100 . 百度学术
30.	宋家豪，曹文博，张伟伟. FD-PINN:频域物理信息神经网络. 力学学报. 2023(05): 1195-1205 . 本站查看
31.	刘黎，王国平，俞恩科. 换流阀空冷器最小交流电压平衡状态红外监测. 激光与红外. 2023(06): 881-886 . 百度学术
32.	郑素佩，林云云，封建湖，靳放. 浅水波方程的黏性正则化PINN算法. 计算物理. 2023(03): 314-324 . 百度学术
33.	邱国强，马云云. 基于人工神经网络数值求解Helmholtz方程. 东莞理工学院学报. 2023(05): 44-53 . 百度学术
34.	韦昌，樊昱晨，周永清，刘欣，张超群，王赫阳. 基于龙格库塔法的多输出物理信息神经网络模型. 力学学报. 2023(10): 2405-2416 . 本站查看
35.	冯唐思捷，梁伟. 基于物理信息神经网络的薄壁结构屈曲分析. 力学学报. 2023(11): 2539-2553 . 本站查看
36.	王绪成，李文凯，艾飞，刘志兵，张远涛. 基于数据驱动的大气压射频放电等离子体数值模拟研究. 力学学报. 2023(12): 2900-2912 . 本站查看