Please use this identifier to cite or link to this item:
http://hdl.handle.net/11455/43057
標題: | Evaluation of simulated transfer functions of concrete plate derived by impact-echo method | 作者: | Cheng, C.C. 林宜清 Lin, Y.C. Hsiao, C.M. Chang, H.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. |
URI: | http://hdl.handle.net/11455/43057 | ISSN: | 0963-8695 | DOI: | 10.1016/j.ndteint.2006.10.001 |
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.