Tag Archives: bridges

Internal Imaging of Concrete Elements

Abstract:The ultrasonic shear wave array method is an emerging mechanical nondestructive testing technology that provides visualizations of the internal structure of concrete members. The authors review the application of the method, demonstrate an example NDT field application, and propose improvements to the method’s existing data analysis procedure for concrete deck thickness measurements. Authors: James A. read more »

The Stress State Identification of Critical Steel Bridge Components Using Nonlinear Acoustics

Summary: A study on the acoustoelastic ultrasonic stress effects in the frequency domain was carried out with a focus on structural steel gusset plates. The primary objective was to construct a field device to provide measuring capabilities for engineers performing structural inspections. Numerical studies were performed in the time domain and frequency domain to identify read more »