Please use this identifier to cite or link to this item:
|標題:||Evaluation of simulated transfer functions of concrete plate derived by impact-echo method||作者:||Cheng, C.C.
|關鍵字:||impact-echo;concrete;nondestructive tests;stress waves||Project:||Ndt & E International||期刊/報告no：:||Ndt & E International, Volume 40, Issue 3, Page(s) 239-249.||摘要:||
In this study, the simulated transfer function of a concrete plate was obtained solely from displacement waveform in an impact-echo test. In the simulated transfer function, the amplitude corresponding to the modal vibration at thickness direction, called the thickness-amplitude, can be consistent during various tests on the same location. An empirical formula was obtained by numerical simulation to predict the thickness-amplitude for given thickness, impact-receiver distance, and P-wave speed. The formula was confirmed experimentally using plates made from various mixed materials with various thicknesses. The differences between the experimental and predicted thickness-amplitude are mostly within 10%. The formula has the potential for quantitative evaluation of the bond between concrete and the substrate layer. (C) 2006 Elsevier Ltd. All rights reserved.
|Appears in Collections:||土木工程學系所|
Show full item record
TAIR Related Article
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.