Recent Advancements in Non-Destructive Testing Techniques for Structural Health Monitoring

Abstract

Structural health monitoring (SHM) is an important aspect of the assessment of various structures and infrastructure, which involves inspection, monitoring, and maintenance to support economics, quality of life and sustainability in civil engineering. Currently, research has been conducted in order to develop non-destructive techniques for SHM to extend the lifespan of monitored structures. This paper will review and summarize the recent advancements in non-destructive testing techniques, namely, sweep frequency approach, ground penetrating radar, infrared technique, fiber optics sensors, camera-based methods, laser scanner techniques, acoustic emission and ultrasonic techniques. Although some of the techniques are widely and successfully utilized in civil engineering, there are still challenges that researchers are addressing. One of the common challenges within the techniques is interpretation, analysis and automation of obtained data, which requires highly skilled and specialized experts. Therefore, researchers are investigating and applying artificial intelligence, namely machine learning algorithms to address the challenges. In addition, researchers have combined multiple techniques in order to improve accuracy and acquire additional parameters to enhance the measurement processes. This study mainly focuses on the scope and recent advancements of the Non-destructive Testing (NDT) application for SHM of concrete, masonry, timber and steel structures.

Development of nano-activated carbon and apply it for dyes removal from water

“…In this study, microwave sensing systems are recommended for the monitoring of depletion in the nanoparticles filters. The microwave sensing system was recommended because of its past successful applications; for example, it was used in the monitoring of health structures (Gkantou et al 2019;Teng et al 2019;Kot et al 2021a), nondestructive sensing (Kot et al 2021b;Omer et al 2021), communications (Ryecroft et al 2019a;Ryecroft et al 2021), water pollution monitoring (Ryecroft et al 2019b).…”

An Acoustic Emission Method for Assessing the Degree of Degradation of Mechanical Properties and Residual Life of Metal Structures under Complex Dynamic Deformation Stresses

“…In [ 29 ], the results of assessing the accumulated damage based on the determination of the values of the diagnostic parameter of acoustic emission are presented. The possibilities and prospects of acoustic emission diagnostics in assessing the structural state of metallic materials at various stages of loading are reflected in [ 30 , 31 , 32 , 33 ].…”

Strategies for Extracting Damage Induced AE Signals from Different Type Noise-Like Backgrounds for Carbon-Fibre Reinforced Polymers

“…The most common non-destructive testing method used to solve such problems is an acoustic emission method [7][8][9][10][11][12]. This method records the elastic waves generated by local defects as they appear and grow in a loaded material.…”

“…This method records the elastic waves generated by local defects as they appear and grow in a loaded material. Analysis of acoustic emission data provides information on the activity, location and, in some cases, the type of an acoustic emission source [7,[10][11][12][13].…”