Simulation and analysis of ultrasonic guided wave nondestructive testing of cofferdam rod based on dispersion curves

Nondestructive testing of cofferdam rod bond integrity is a new important subject. Based on dispersion properties, this paper filters out an appropriate guided-wave frequency for cofferdam rod testing and gives the reflected wave which can identify the bottom of cofferdam rod with simulation analysis. The adhesive quality of cofferdam rod can be quantified by calculating the attenuation coefficients, which realizes nondestructive testing. © 2005 - 2013 JATIT & LLS. All rights reserved.