The detection of concrete microcracks under compressive loading based on nonlinear ultrasonics modulation with broadband excitation

PDF(2429 KB)

Journal of Vibration and Shock ›› 2022, Vol. 41 ›› Issue (18) : 184-191.

WANG Qingyuan1,2,XU Ying1,2,FAN Yue1,2,XU Tingting1,2

Author information +

History +

Abstract

The initiation and propagation of microcrack damage in concrete under compression load have a great influence on structures that require a high level of concrete durability. This paper theoretically analyzed the nonlinear acoustic modulation mechanism in concrete at the initial stage of compression cracking and explored the relationship between microcrack density of concrete and nonlinear response variation. Nonlinear behavior and microcrack development of concrete were simulated by finite element method. The opening /closing state of microcracks under different cracking states and the propagation characteristics of nonlinear acoustic modulated signals were investigated. It was found that the change of the DI (damage index) of the SPC (side peak count) difference of the nonlinear acoustic field technology was much more significant than that of the microcrack density measured by DIC method. The experimental results showed the good feasibility of microcracks detection with width of 30-80μm. Moreover, the experiment found that when the peak value of DI is from 0.02 to 0.2, microcrack occurs in concrete. The linear regression numerical relationship between the peak value of DI and microcrack density is given in the stable-damage stage of concrete.
Key words: concrete microcracks; nonlinear acoustic modulation technique; microcrack density; sideband peak count; damage index.

Key words

concrete microcracks / nonlinear acoustic modulation technique / microcrack density / sideband peak count / damage index.

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

WANG Qingyuan1,2,XU Ying1,2,FAN Yue1,2,XU Tingting1,2. The detection of concrete microcracks under compressive loading based on nonlinear ultrasonics modulation with broadband excitation[J]. Journal of Vibration and Shock, 2022, 41(18): 184-191

References

[1] Lim Y Y, Smith S T, Soh C K. Wave propagation based monitoring of concrete curing using piezoelectric materials: Review and path forward[J]. NDT & E International, 2018(99): 50-63.
[2] Solodov I, Krohn N, Busse G. Nonlinear ultrasonic NDT for Early defect recognition and imaging, Proceedings of the 10th European Conference on Non-Destructive Testing, Moscow, 2010.
[3] Sohn H, Lim H J, Yang S. A Fatigue Crack Detection Methodology[M]. Springer Netherlands, 2015.
[4] Kawashima K, Ryuji O, Toshihiro I, et al. Nonlinear acoustic response through minute surface cracks: FEM simulation and experimentation[J]. Ultrasonics 2002;40:611–5.
[5] Antonaci P, Bruno C, Bocca PG, et al. Nonlinear ultrasonic evaluation of load effects on discontinuities in concrete[J]. Cement & Concrete Research, 2010, 40(2):340-346.
[6] Zardan J P, Payan C, Garnier V, et al. Effect of the presence and size of a localized nonlinear source in concrete[J]. Journal of the Acoustical Society of America, 2010, 128(1):38-42.
[7] Xu Y , Wang Q , Jiang X , et al. Nondestructive assessment of microcracks detection in cementitious materials based on nonlinear ultrasonic modulation technique[J]. Construction and Building Materials, 2021(267).121653.
[8] 郑慧峰，凌田昊，呼刘晨，等. 振动声调制技术下微裂缝的非线性响应分析[J]. 声学学报，2020,45(04):571-577.
ZHENG Hui-feng, LING Tian-hao, HU Liu-chen, et al. Nonlinear response analysis of micro-crack under vibro-acoustic modulation[J]. ACTA ACUSTIC ,2020,45(04):571-577.
[9] Litorowicz A. Identification and quantification of cracks in concrete by optical fluorescent microscopy[J]. Cement and concrete Research, 2006, 36(8): 1508-1515.
[10] Bin Liu, Jun Yang, Tie Gang. Analysis of sound and vibration interaction on a crack and its use in high-frequency parameter selection for vibro-acoustic modulation testing[J]. Mechanical Systems and Signal Processing, 2020(143), 106835.
[11] 钟群鹏，周煜，张峥. 裂纹学[M]. 北京: 高等教育出版社，2014.
ZHONG Qun-peng, ZHOU Yu, ZHANG Zheng. Study of crack[M]. Beijing: Higher Education Press, 2014.
[12]陶翀骢. 复合材料层合板损伤检测及其剩余力学性能预测[D].南京航空航天大学,2018.
TAO Chongcong. Damage Detection and Residual Mechanical Performance Prediction for Composite Laminates[D]. Nanjing University of Aeronautics and Astronautics,2018.
[13] Kumar R, Bhattacharjee B. Porosity, pore size distribution and in situ strength of concrete [J]. Cement and Concrete Research, 2003, 33(1): 155-164.
[14] Umit Cicekli. A Plasticity-Damage Model for Plain Concrete[D]. Louisiana State University. 2006.
[15] GB/T 50081-2019, 混凝土物理力学性能试验方法标准[S]. 北京：中国建筑工业出版社, 2019.
GB/T 50081-2019, Standard for test methods of concrete physical and mechnical properties[S]. Beijing: China Architecture & Building Press, 2019.
[16] Chen W. F, Salecb A. F. Constitutive equations for engineering materials: elasticity and modeling [M]. New York: John Wiley & Sons Inc, 1982.