Validation is in many fields of technology state-of-the-art to furnish the proof that customer demands are fulfilled. Validation contributes to improve the application safety of a method and helps to leverage not standardised methods. A validation methodology has been developed with the three main steps “method characterisation”, “customer demands” and “customer fulfillment”. Starting with a un...

The main objective of the ultrasonic non-destructive testing (NDT) applications is to detect dangerous defects in the various constructions. The parameters and geometry of defects is very important information determining lifetime of constructions or components. In conventional ultrasonic NDT methods, based on the measurement of the amplitude and delay time of reflected signal are used. Such an...

Several non-destructive test (NDT) methods, namely visual inspection, hammer sounding, chain drag, impulse response testing, impact echo ultrasonic (array) and under certain conditions ground penetrating radar (GPR) are currently used to detect estimate the extent of damage such as delaminations in reinforced concrete bridge decks. In this article, we present a self-referencing NDT method that ...

Among the widely used Non-Destructive Testing and evaluation approaches, InfraRed Thermography has proven to be one of the vital NDT technique due to its inherent capabilities for testing and evaluation of various solid materials. Nevertheless, there are some limitations; depending upon the test approach used, as well as the adopted data processing method. In active approach of infrared thermog...

Non-destructive testing (NDT) is a broad group of and analysis techniques used in science industry to evaluate the properties material, structure, or system for characteristic defects discontinuities without causing damage. Recently, infrared thermography one most promising technologies as it can inspect large area quickly using non-contact non-destructive method. Moreover, has proved be valuab...

To solve the problems of image threshold segmentation based on weak continuous constraint theory, running time is long, and two parameters need to be selected manually, therefore a fast single-parameter energy function thresholding for region information (FSEFTISRI) proposed in this paper. The FSEFTISRI algorithm uses simple linear iterative clustering (SLIC) technology pre-block image, extract...

Pavement deflection data are often used to evaluate a pavement’s structural condition non-destructively. It is essential not only to evaluate the structural integrity of an existing pavement but also to have accurate information on pavement surface condition in order to establish a reasonable pavement rehabilitation design system. Pavement layers are characterized by their elastic moduli estima...

Abstract Laser powder bed fusion (LPBF) facilitates the integration of external elements like sensors into workpieces during manufacturing. These embedded components enable e.g. part monitoring, thus being a fundamental application industry 4.0. This study assesses feasibility embedding eddy current (EC) for non-destructive testing (NDT) SLM aiming at structural health monitoring (SHM). A relia...