Browsing Research Publications/Outputs by Subject "SAFE"

Now showing items 1-6 of 6

Accuracy of semi-analytical finite elements for modelling wave propagation in rails

Author: Andhavarapu, EV ; Loveday, Philip W ; Long, Craig S ; Heyns, PS Date: Jan 2010 The semi-analytical finite element method (SAFE) is a popular method for analysing guided wave propagation in elastic waveguides of complex cross-section such as rails. The convergence of these models has previously been studied for linear ... Read more
Adaptive SAFE model of a rail for parameter estimation

Author: Setshedi, Itumeleng ; Long, Craig S ; Loveday, Philip W ; Wilke, Daniel N Date: Sep 2018 Permanently installed monitoring systems, which make use of guided wave ultrasound, can monitor long distances of rail track from a single transducer location. Read more
Numerical characterisation of guided wave scattering due to welds in rails

Author: Long, Craig S ; Loveday, Philip W Date: Apr 2012 The 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
Numerical evaluation of pulse-echo damage detection in train rail

Author: Long, Craig S ; Loveday, Philip W Date: Jan 2014 A guided wave based monitoring system for welded freight rail, has previously been developed. The existing system was designed to only detect complete breaks. Current research efforts are focused on including a pulse-echo mode of operation ... Read more
Numerical modelling of defects in rails

Author: Long, Craig S ; Loveday, Philip W Date: Sep 2012 The 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
Numerical verification of an efficient coupled SAFE-3D FE analysis for guided wave ultrasound excitation

Author: Long, Craig S ; Loveday, Philip W ; Ramatlo, Dineo AM ; Andhavarapu, EV Date: Sep 2018 Numerical 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

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Browsing Research Publications/Outputs by Subject "SAFE"

Browsing Research Publications/Outputs by Subject "SAFE"

Browse

All of ResearchSpace

This Community

Quick Links

Legislation and compliance

General Enquiries

Social Connect