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1
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100%
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Journal of Automation Mobile Robotics and Intelligent Systems
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| EN |
This paper presents the results of investigation on the
tensile stresses dependence of magnetic characteristics
of the L17HMF steel casting. To ensure uniform stress
distribution in the sample for this investigation and the
closed magnetic circuit, the frame-shaped samples were
used. This is very im[...]
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2
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80%
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Fatigue of Aircraft Structures
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| EN |
Structural properties of materials change under stress, temperature and work environment. These changes are generally unfavorable. They cause a reduction in strength of materials. This has an impact on the safety and service life of machines and constructions. In the chemical and petrochemical indus[...]
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3
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80%
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Targowski, P.
Bajraszewski, T.
Gorczynska, I.
Gora, M.
Szkulmowska, A.
Szkulmowski, M.
Wojtkowski, M.
Kaluzny, J. J.
Kaluzny, B. J.
Kowalczyk, A.
Optica Applicata
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| EN |
An overview of the spectral optical coherence tomography which is the alternative to the traditional Time domain version is given. Examples of applications in ophthalmology as well as in art preservation are presented.
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4
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80%
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Measurement Automation Monitoring
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| EN |
This paper presents a comparison of two methods used for non-destructive testing: thermal impedance (Zth) and wavelet transform (WT). The transient heating process of a textolite plate with defects was measured using a thermographic camera. Based on the measurement results, a qualitative and quantit[...]
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5
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80%
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Journal of KONES
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| EN |
Presently a lot of designs of light armours are based mainly on the multilayer composite materials. Thanks to
these materials it was possible to achieve highest levels of ballistic resistance of specific armour at limited weight. The
weight (area density) and the performance have direct influence on[...]
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6
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80%
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Metrology and Measurement Systems
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| EN |
The photoacoustic cell is the heart of the nondestructive photoacoustic method. This article presents a new simple lumped-components CRLC model of the Helmholtz type photoacoustic cell. This model has been compared with the well known literature models describing the Helmholtz type cells for photoac[...]
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7
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80%
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Opto - Electronics Review
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| EN |
In this paper the experimental results of piezoelectric and magnetostrictive ultrasonic stimulation are comparatively analyzed in the evaluation of impact damage in a graphite epoxy composite sample chosen for a round robin test. By comparing theoretical and experimental results, it is shown that th[...]
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8
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80%
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Pomiary Automatyka Kontrola
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| PL |
W pracy została przedstawiona aplikacja modelująca pole harmonicznej płaskiej ultradźwiękowej fali rozproszonej na cienkiej płaskiej sztywno podpartej niejednorodności w materiale sprężystym. Aplikacja może być użyta jako narzędzie wspomagające proces nieniszczących ultradźwiękowych badań elastyczny[...]
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| EN |
An application for modeling of plane harmonic SH wave scattering on a thin plane rigidly supported inclusion in a uniform background (in two-dimensional Euclidean space) is presented. The application can be used as a tool in nondestructive testing of clastic materials with thin plane rigidly support[...]
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9
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80%
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Fatigue of Aircraft Structures
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| EN |
This paper presents the results of the quantitative evaluation of the degree of damage caused by plastic strain accumulated in static tensile tests and creep tests. To detect changes in the structure of the material and in order to determine the degradation of the materials, nondestructive methods w[...]
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10
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80%
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Napędy i Sterowanie
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| PL |
Stal martenzytyczna P91 należy do grupy stali stosowanych w energetyce. Komponenty maszyn i wyposażenie wykorzystujące stale z tej grupy (K18 - P 265 i 13 HMF) są użytkowane w eksploatacji przy podwyższonych temperaturach. Stale te są narażone na obciążenia zmęczeniowe cieplne, przyspieszoną korozję[...]
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| EN |
The martensitic steel P91 belongs to the group of steels used in power engineering. Machine components and equipment using steels from the group (K18 - P 265 and 13 HMF) are utilized in service at increased temperatures. Such steels are exposed to thermal fatigue loads, accelerated corrosion, dynami[...]
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11
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80%
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Advances in Materials Science
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| EN |
Over the past twenty years, the increase of use of structural materials in Aerospace is due to many reasons. While the properties of metallic materials are mastered, the risk behavior of composite materials requires monitoring of the structure. That’s why many methods of non-destructive testing (NDT[...]
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12
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80%
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Badania Nieniszczące i Diagnostyka
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| PL |
W referacie przedstawiono rozwój metod nieniszczących na podstawie:
• prac naukowo – badawczych w PAN, wyższych uczelniach oraz instytutach
naukowo – badawczych;
• konferencji naukowo – technicznych;
• publikacji w postaci monografii, artykułów i referatów;
• kursów i studiów podyplomowych.
Przedsta[...]
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| EN |
The paper presents the development of nondestructive methods based on:
scientific and research works at • the Polish Academy of Sciences, universities
and research institutes;
• scientific and technical conferences;
• publications in the form of monographs, articles and lectures;
• courses and post-[...]
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13
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80%
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Acta Geophysica
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| EN |
Moisture ingress is one of major damaging factors for masonry buildings. As the complex resistivity (CR) is sensitive to textural properties as well as to the pore fluid chemistry of wet porous media, its nondestructive application can provide helpful information for conservators. In a comprehensive[...]
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14
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80%
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Maszyny Elektryczne : zeszyty problemowe
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| PL |
W artykule przedstawiono opis nieniszczących metod badań diagnostycznych elementów mechanicznych maszyn (badania NDT–Non Destructive Testing). Badania nieniszczące urządzeń i konstrukcji stanowią grupę metod badawczych, które dostarczają informacji o własnościach materiału obiektu, nie wpływających [...]
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| EN |
The description of non-destructive testing methods (NDT) for diagnosing mechanical elements of machines is given in the paper. The non-destructive tests of devices and structures belong in the class of diagnostic methods providing information about the material of tested element, and the tests do no[...]
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15
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80%
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Machine Dynamics Problems
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| EN |
This paper is a contribution into a wider discussion about nondestructive testing in material engineering. The aim of described research is the enhancement of experimental possibilities for subsurface defects detection in materials, products and structures by using an infrared scanning detector came[...]
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16
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70%
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Archives of Metallurgy and Materials
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| EN |
The main goal of the article is to identify artificially created defects like lack of fusion and incomplete penetration in buttweld joint using non-destructive volumetric methods. These defects are the most serious defects in welds of steel constructionsfrom the safety point of view. For identificat[...]
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17
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61%
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Przegląd Elektrotechniczny
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| PL |
Turbiny wiatrowe są złożonymi strukturami kompozytowymi, których stan powinien być stale badany. W niniejszym opracowaniu
krótko przedstawiono metody nieniszczącego badania łopat turbin wiatrowych, które są obecnie stosowane lub są możliwe do wdrożenia. Nowe
techniki wykorzystujące zjawiska elektrom[...]
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| EN |
Wind turbines are complex composite structures, which condition should be constantly tested. In this paper the techniques which are
already used or are implementable for non-destructive examination of wind turbine blades will be presented shortly. New electromagnetic techniques
like active IR testin[...]
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18
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61%
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Selected Engineering Problems
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| EN |
To ensure the quality of the welded joints on the pipes, instead of one procedure for non-destructive inspection, many times, two or more procedures are used, which complete each other. That is why it is important to have several procedures for the non-destructive
inspection. The compared analysis i[...]
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19
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61%
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Machine Dynamics Problems
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| PL |
Artykuł opisuje zastosowanie analizy falkowej w przetwarzaniu sygnałów typu impulsowego. Analizowano kilka typów modeli sygnałów, których opis matematyczny zaczerpnięty był ze znanych z teorii dystrybucji przybliżeń δ - funkcji Diraca. Do opisu wyników transformaty autorzy zaproponowali wprowadzenie[...]
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| EN |
The paper deals with the application of wavelet transform to processing of impulse-type signals. This article analyses a number of impulse signal models. The mathematical description of these models has been taken from the Dirac delta function approximation. The authors have proposed use of certain [...]
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20
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61%
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Archives of Civil and Mechanical Engineering
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| EN |
A discernible increase in importance of the methods used to evaluate and to control industrial processes has been observed over recent years. More and more frequently, companies utilize advanced methods of non-destructive testing to be competitive on the market and to provide high quality products. [...]
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