Defect detection by ultrasonic guided wave for a steel wire in the anchorage zones

The aim of this paper is to investigate the propagation of ultrasonic waves in a steel wire and to determine whether it is possible to detect and locate the defects by the finite element method. First, the dispersion curves of longitudinal modes were obtained and calculated analytically. Then, the ultrasonic guided waves propagating in a steel wire with or without defects were simulated by the finite element method. To take account of the damage, the V-type groove defects were modeled to have different sizes in the mouth width and the tip depth. It is found that the finite element method can be applied to model the guided-wave propagation in a steel wire with corrosions.