EngD student, 2014 intake
Research: Structural health monitoring of pipelines with guided waves
University: Imperial College
Sponsoring company: Guided Ultrasonics Ltd
Undergraduate BSc in Physics at the University of Warwick, 2014.
Unlike traditional ultrasonic NDE methods, guided waves are able to cover a large range along a pipeline with a single measurement. Structural health monitoring (SHM) makes use of repeated measurements of the same pipeline section to investigate the change of its properties over time and study the appearance and growth of defects by using permanently installed monitoring systems (PIMS). Contrary to conventional guided wave sensors, PIMS are fixed on the pipeline and stay attached in between measurements. This gives SHM the advantage over single guided wave measurements since baseline signal subtraction can be performed and therefore it possible to detect smaller defects and monitor their growth.
During the course of my project the influence of environmental conditions, such as temperature- and support load changes, on the performance of baseline subtraction will be evaluated. In order to automate and improve the sensitivity of the defect detection process, the impact of increased data collection frequency will be investigated.