Ultrasonic guided wave testing (UGWT) is a non-destructive (NDT) technique commonly used in structural health monitoring to perform wide-range inspection from single point, thus reducing the time and effort required for NDT. However, multi-modal dispersive nature of waves makes extraction essential information that leads defect detection an extremely challenging task. The purpose this article g...

The objective of this paper is to propose tools for the lifecycle management infrastructure by showing slow degradation processes which inspection data are accessible, especially obtained from non-destructive testing (NDT) and structural health monitoring (SHM). One major characteristic these their multiphasic nature; consequently, they can be discretised into different phases with specific phy...

Control by eddy current is one of techniques that’s very used in nondestructive evaluation of materials. These processes find an application significant in the determination of the mechanical and metallurgical parameters of materials. The object of this work is to carry out an analysis of the residual stresses in the material created by external solicitations and analysed by eddy currents as a ...

Integrated non-destructive testing (NDT) method consisting of acoustic emission (AE) and digital image correlation (DIC) was used to monitor evaluate the load-behaviour shear-critical reinforced concrete beams subjected corrosion. Measurement data in forms mechanical load, deflection, surface strain AE signals were processed collectively analysed facilitate interpretation damage development cha...

This paper introducesminiPixD: a new, compact system that utilises transmission X-ray imaging and X-ray diffraction (XRD) to locate and identify materials of interest within an otherwise opaque volume. The system and the embodied techniques have utility in security screening, medical diagnostics, non-destructive testing (NDT) and quality assurance (QA). This paper outlines the design of the sys...

Existing concrete structures were usually designed for lifetimes of several decades. The current and urgently required efforts to increase sustainability protect the environment will likely result in extended service lives up 100 years. To achieve such objectives, it is assess over their entire lifecycles. Non-destructive testing (NDT) methods can reliably support assessment existing during con...

Artificial neural networks are widely used to develop models able predict properties of interest by learning and establishing relationships between inputs outputs a system. It is particularly relevant for the inversion process in framework Non-Destructive Testing (NDT) involving strongly non-linear non-monotonic behavior and/or saturations. The case-study considered this work magnetic material ...

Reinforced concrete structures are typically exposed to a combination of aggressive substances and mechanical stresses, which contribute fast degradation. The present research was conducted evaluate five time-dependent parameters from several different tests, namely compressive strength, static modulus, dynamic surface, bulk electrical resistance. Some were obtained using destructive testing (D...

A multi-analytical non-destructive testing (NDT) methodology was applied to copper-based artifacts originated from various archaeological sites of Greece. X-ray fluorescence (XRF), fiber optics diffuse reflectance spectroscopy (FORS) and scanning electron microscopy coupled with an energy dispersive detector (ESEM-EDX) were used for the characterization alloys corrosion products. The key elemen...

3D scanning and modeling is used in a wide range of applications like manufacturing, aerospace, security, biomedicine, etc. This kind of systems allows the scanning of a 3D point cloud that can be meshed and rendered in order to obtain a complete 3D model. However, 3D vision cannot detect subsurface defects. This later can be achieved using other imaging modalities, like thermal infrared imagin...