Ultrasonic Modelling for Non-destructive Testing

<p>Ultrasonic techniques are used for non-destructive purposes to assess the properties and state of structures designed for a wide range of applications (engineering construction materials medicine etc.). Different types of material properties (mechanical chemical physical biological etc.) with different physical states/compositions (solid liquid heterogeneous inhomogeneous complex moving etc.) can be studied. This reprint delves into mutually dependent subfields including but not restricted to ultrasonic wave techniques for classical non-destructive testing (NDT) and structural health monitoring; new methods for imaging; ultrasonic characterization; non-linear acoustics; acoustic emission; laser ultrasonics; sensors; signal and noise analysis. This Special Issue explores notably some advances in ultrasonic modeling methods for understanding or predicting NDT inspections. The simulation tools developed can be based on different mathematical/physical theories or assumptions; for example semi-analytical numerical and hybrid models can be used for direct simulation and model benchmarking inversion theory for imaging and damage localization as well as artificial intelligence. The reprint constructs a comprehensive collection of research and development trends that will serve as a convenient reference for NDT experts as well as new practitioners.</p>