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Proceedings Paper

Finite element analysis of surface wave radiation for pavement debonding
Author(s): Yifeng Lu; Yinghong Cao; J. Gregory McDaniel; Ming L. Wang
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Paper Abstract

A large scale finite element model with high mesh resolution is established to simulate the ground truth of regular highway pavement structure with subsurface debonding defects. The simulation is motivated by non-destructive testing methods that derive information from the acoustic radiation of the surface wave. These NDT (Non-Destructive Testing) signals come from solid elastic wave propagation beneath pavement surface, which then couple with acoustic wave in air above the pavement surface. In this article, 2 main debonding phenomena, which are conventionally hidden below the pavement surface, are modeled and also compared with a healthy (perfectly intact) pavement structure model. Both the impact-response transient analysis and frequency spectrum analysis have been given to show a new opportunity to detect the subsurface debonding in pavement non-destructively through acoustic signals from heights above the pavement surface which are incorporated with ground truth information.

Paper Details

Date Published: 8 April 2010
PDF: 10 pages
Proc. SPIE 7649, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2010, 76490W (8 April 2010); doi: 10.1117/12.854685
Show Author Affiliations
Yifeng Lu, Northeastern Univ. (United States)
Yinghong Cao, Northeastern Univ. (United States)
J. Gregory McDaniel, Boston Univ. (United States)
Ming L. Wang, Northeastern Univ. (United States)


Published in SPIE Proceedings Vol. 7649:
Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2010
Peter J. Shull; Aaron A. Diaz; H. Felix Wu, Editor(s)

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