Numerical simulation on stress wave propagation of steel-concrete composite structures with interface debonding by spectral element method

被引：0

作者：

Luan L.-L. ^{[1
]}

Xu B. ^{[2
,3
]}

Chen H.-B. ^{[1
]}

机构：

[1] College of Civil Engineering, Hunan University, Changsha

[2] College of Civil Engineering, Huaqiao University, Xiamen

[3] Key Laboratory for Structural Engineering and Disaster Prevention of Fujian Province (Huaqiao University), Xiamen

来源：

Gongcheng Lixue/Engineering Mechanics | 2017年 / 34卷 / 02期

关键词：

Composite structure; Damage detection; Interface debonding; Spectral element method; Stress wave method;

D O I：

10.6052/j.issn.1000-4750.2015.07.0596

中图分类号：

学科分类号：

摘要：

To investigate the elastic stress wave propagation in steel-concrete composite structures, a 2 dimensional spectral element model for steel-concrete composite sections was established and the elastic stress wave propagation in the hybrid section with and without interface debonding defects was simulated under single point excitation. The interface debonding was simulated by removing concrete elements between steel tube and concrete core. The wave field and displacement responses of different nodes between the models with and without defects were compared to explain the effect of interface debonding on elastic stress wave propagation. Finally, the displacement responses of different numerical models with different levels of interface debonding were compared to investigate the relationship between the displacement response and the interface debonding defects. Spectral element method (SEM) provides an efficient way for the stress wave simulation of steel-concrete composite structures, which is helpful for the study on the mechanism for interface debonding detection of steel-concrete composite structures based on stress wave measurement. © 2017, Engineering Mechanics Press. All right reserved.

引用

页码：145 / 152

页数：7

共 29 条

[1]

Palacz M., Krawczuk M., Vibration parameters for damage detection in structures, Journal of Sound and Vibration, 249, 5, pp. 999-1010, (2002)

[2]

Xu B., Li B., Song G., Active debonding detection for large rectangular CFSTs based on wavelet packet energy spectrum with piezoceramics, ASCE Journal of Structural Engineering, 139, 9, pp. 1435-1443, (2013)

[3]

Xu B., Zhang T., Song G., Et al., Active interface debonding detection of a concrete-filled steel tube with PZT techniques using wavelet packet analysis, Mechanical Systems and Signal Processing, 36, 1, pp. 7-17, (2013)

[4]

Xu B., Cai P., Zhou Y., Huang Q., Experimental study on defect detection of concrete core of concrete-filled steel tubular with embedded PZT, Piezoelectrics & Acoustooptics, 37, 4, pp. 489-496, (2015)

[5]

Cai P., Xu B., Zhou Y., Experimental study on interface debonding detection of concrete-filled steel tubular using surface-mounted PZT, Piezoelectrics & Acoustooptics, 37, 2, pp. 337-341, (2015)

[6]

Xu B., Li B., Song G., Teng J., LingHu Y., Detection of the debonding defect of concrete-filled steel tubes with piezoceramics, China Civil Engineering Journal, 45, 7, pp. 86-96, (2012)

[7]

Sun W., Yan S., Jiao L., Song G., Monitoring technology for crack damage of concrete structure based on piezoelectric wave method, Engineering Mechanics, 30, pp. 206-211, (2013)

[8]

Luo Y., Li Z., Theory and application of prestack migration in flaw detection of concrete structure, Engineering Mechanics, 26, 2, pp. 182-187, (2009)

[9]

Wang Z., Li Z., Long G., Gao Q., Zhao J., Comparison among implementations of free-surface boundary in elastic wave simulation using the finite-difference method, Engineering Mechanics, 29, 4, pp. 77-83, (2012)

[10]

Koshiba M., Karakida S., Suzuki M., Finite element analysis of lamb waves scattering in an elastic plate waveguide, IEEE Transactions on Sonics and Ultrasonic, 31, 1, pp. 18-24, (1984)

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