Evaluation of interfacial bond condition between concrete plate-like structure and substrate using the simulated transfer function derived by IE

被引：12

作者：

Cheng, Chia-Chi ^{[1
]}

Yu, Chih-Peng ^{[1
]}

Liou, Tzunghao ^{[2
]}

机构：

[1] Chaoyang Univ Technol, Dept Construct Engn, Taichung Cty 41349, Taiwan

[2] Diwan Coll Management, Dept Leisure & Recreat Management, Madou, Taiwan

来源：

NDT & E INTERNATIONAL | 2009年 / 42卷 / 08期

关键词：

Impact-echo; Transfer function; Bond; Concrete; Substrate; Lamb mode; IMPACT-ECHO METHOD; IMPULSE-RESPONSE; THICKNESSES; BARS; WAVE;

D O I：

10.1016/j.ndteint.2009.06.001

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A method incorporating a simulated transfer function is proposed for effectively evaluating loss of bond between concrete and a substrate for plate-like concrete structures. The simulated transfer function is derived from the impact-echo response in which the Rayleigh wave recorded by the displacement transducer used to generate a realistic force-time function. The results of numerical simulations show that the thickness amplitude corresponding to the concrete overlay decreases with increasing substrate stiffness for the case of a semi-infinite substrate. Some unexpected high thickness amplitudes were found for models with finite substrate thicknesses due to a coupling effect between substrate and concrete layers. The experimental thickness amplitudes for bonded composite plates agree well with the ones predicted from numerical simulations. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：678 / 689

页数：12

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