نتایج جستجو برای: non destructive test ndt
تعداد نتایج: 2038682 فیلتر نتایج به سال:
Pulsed eddy current (PEC) non-destructive testing and evaluation (NDT&E) has been around for some time and it is still attracting extensive attention from researchers around the globe, which can be witnessed through the reports reviewed in this paper. Thanks to its richness of spectral components, various applications of this technique have been proposed and reported in the literature covering ...
A procedure is developed for estimating the representative tensile response of existing thin Ultra-High Performance Fiber-Reinforced cement Composite (UHPFRC) layers. The procedure relies on non-destructive (NDT) measurements and on a previous tensile characterization campaign of the composite material, thereby avoiding the extraction of samples from the real structure. Two reliable indicators ...
The cultural heritage artifacts Conservation Documentation format is not universally agreed upon nor has it always been considered an important aspect of the conservation profession. Conservation records present major drawbacks, which are the fragmentary and incomplete description of the contained information and related processes. On the other hand, as strict regulations prohibit invasive test...
− In this paper a new non-destructive testing (NDT) system focusing on micro size superficial defects in metals is presented. The innovative system is composed by a new type of eddy currents probe, electronic devices for signal generation, conditioning and conversion, automated mechanized scanning and analysis software. The key original aspect of this system is the new type of eddy currents pro...
Maintenance manuals include general methods and procedures for industrial maintenance and they contain information about principles of maintenance methods. Particularly, Non-Destructive Testing (NDT) methods are important for the detection of aeronautical defects and they can be used for various kinds of material and in different environments. Conventional non-destructive evaluation inspections...
The inspection of welds plays a crucial role in world wide industrialized markets. It is needed for assuring safety and consistency in several industrial sectors. The special types of vision inspection systems are used to defeat the crisis such as inaccuracy in images, non-uniformed illumination, noise and deficient contrast, confusion of defects in same spot at surface. Non-destructive testing...
Wildfires are one of the main threats natural areas and often fires can affect protected or heritage properties, in which preservation requirements demand use non-destructive techniques (NDTs). The magnetic susceptibility is an NDT that provides information on mineralogical composition materials but has never been applied to evaluation fires. Here, we combine laboratory with field analysis test...
Electrical Impedance Tomography (EIT) is an imaging modality which reconstructs the impedance distribution of a closed domain using the measured boundary voltage data when injecting current [1-6]. It has been applied to numerous industrial applications such as: process tomography [7], nondestructive testing [8], imaging biological cells [9], medical imaging equipment [4] etc. Among them, non-de...
It is well known that in the Non Destructive Testing/Evaluation (NDT/E) context, Ultrasonic Echoes (UEs) and Tests (UTs) are intensively exploited to identify and characterize defects in the Carbon Fiber Reinforced Polymer (CFRP). This paper examines the localization and the classification of defects in this material from a fuzzy geometrical point of view. In particular, starting from an experi...
Although measurement data from the civil engineering sector are an important basis for scientific analyses in field of non-destructive testing (NDT), there is still no uniform representation these data. An analysis sets across different test objects or types therefore associated with a high manual effort. Ontologies and semantic web technologies already used numerous intelligent systems such as...
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