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Damage Detection in Concrete Elements with Surface Wave Measurements

机译：面波测量的混凝土构件损伤识别

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摘要

The objective of this research was to assess the ability of surface wavemeasurements and the SASW technique to detect crack damage in beam and column elements. The damage was detected by a change in the surface wave dispersion curve (phase velocity vs frequency) between undamaged and damaged states. To calculate the dispersion curve, the SASW (Spectral Analysis of Surface Waves) technique was used with response records from two locations. Finite element analysis was used to analytically generate the response records. Experimentally, acceleration measurements were taken. Results showed that the SASW method is one potential method to detect cracks.

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作者
Bowen, B. R.;
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年度 1992
页码
总页数 207
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Concrete; Cracks; Damage assessment; Surface waves; Acoustic waves; Defects(Materials); Stress waves; Nondestructive testing; Ultrasonic tests; Acoustic images; Spectroscopy; Beams(Structural); Columns(Supports); Rayleigh waves;

机译：混凝土;裂缝;损伤评估;表面波;声波;缺陷（材料）;应力波;无损检测;超声波测试;声学图像;光谱学;光束（结构）;柱（支撑）;瑞利波;

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5. Damage detection in concrete elements with surface wave measurements. [D] . Bowen, Britt Roderick. 1992

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Damage Detection in Concrete Elements with Surface Wave Measurements

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