Author:Long, Craig S; Loveday, Philip WDate:Apr 2012The analysis of travelling waves in elastic waveguides with complex cross-sections, such as train rails, can only conveniently be performed numerically. The semi-analytical finite element (SAFE) method has become a popular tool for performing ...Read more
Author:Long, Craig S; Loveday, Philip WDate:Sep 2012The semi-analytical finite element (SAFE) method has become a popular tool for the analysis of elastic waveguides with complex cross-sections. We employ a recently developed hybrid SAFE-3D FE method to study the scattering of guided waves at ...Read more
Author:Long, Craig S; Loveday, Philip W; Ramatlo, Dineo AM; Andhavarapu, EVDate:Sep 2018Numerical verification of a method to simulate piezoelectric transducers exciting infinite elastic waveguides is presented. The method, referred to as SAFE-3D, combines a 3D finite element (FE) model of a transducer with a 2D semi-analytical ...Read more
Author:Ramatlo, DA; Long, Craig S; Loveday, Philip W; Wilke, DNDate:Oct 2016Our existing Ultrasonic Broken Rail Detection system detects complete breaks and primarily uses a propagating mode with energy concentrated in the head of the rail. Previous experimental studies have demonstrated that a mode with energy ...Read more