Temat: electronic speckle pattern interferometry - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Assessment of fatigue life of aluminized, coarse-grained MAR247 alloy supported by full-field ESPI measurements
Autorzy:: Kopec, Mateusz
Kukla, Dominik
Kowalewski, Zbigniew L.
Powiązania:: https://bibliotekanauki.pl/articles/2200834.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: fatigue development
damage
nickel alloys
electronic speckle pattern interferometry
Opis:: In this paper, fatigue performance of an aluminide layer coated, coarse-grained MAR247 nickel superalloy was monitored by using the full-field Electronic Speckle Pattern Interferometry (ESPI) method in the range of stress amplitude from 350MPa to 650MPa. It was found, that the ESPI method enables precise monitoring of the fatigue behaviour of coated MAR247 specimens since the area of potential failure was accurately indicated within the initial stage of fatigue damage development.
Źródło:: Journal of Theoretical and Applied Mechanics; 2022, 60, 4; 619--623
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Application of Electronic Speckle Pattern Interferometry for Evaluation of the Static Stiffness of a Complex Orthopedic Implant
Autorzy:: Mrozek, Piotr
Borkowski, Piotr
Powiązania:: https://bibliotekanauki.pl/articles/2024033.pdf
Data publikacji:: 2021
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: complex orthopedic implant
electronic speckle pattern interferometry
finite element method
Opis:: The paper presents a comparative analysis of the results of experimental and numerical evaluation of static stiffness of extendable tumor knee joint prosthesis for children. Electronic speckle pattern interferometry and finite element method were used for experimental and computational research, respectively. The procedure of experimental tests shows that the stiffness of the joint prosthesis can be determined experimentally by means of electronic speckle pattern interferometry, but the quantitative result of such a procedure cannot be captured directly in a finite element method model. The values of static stiffness calculated numerically do not fall within the range of experimental results. The discrepancy grows as the extension of the endoprosthesis increases and the value of relative difference between numerical and experimental results reaches the value of 54%. The inconsistency of results can be explained by the involvement of the joint linking the body of the implant to the moving part. While effective in the case of traditional, one-piece constructions, finite element method modeling does not yield satisfactory results in the case of such an elementary parameter as is the static stiffness of the implant, due to the difficulty in estimating the stiffness of the joint present in the sliding node. The use of the experimental method makes it possible to estimate the degree of this inconsistency.
Źródło:: Advances in Science and Technology. Research Journal; 2021, 15, 2; 39-48
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Pomiary i analiza naprężeń resztkowych w stopie tytanu Ti6Al5 z zastosowaniem elektronicznej interferometrii plamkowej (ESPI)
Measurement and analysis of residual stresses in Ti6Al5 using electronic speckle pattern interferometry (ESPI)
Autorzy:: Tomkowski, R.
Lipiński, D.
Kacalak, W.
Powiązania:: https://bibliotekanauki.pl/articles/156713.pdf
Data publikacji:: 2013
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: naprężenia resztkowe
stop tytanu
elektroniczna interferometria plamkowa
residual stress
titanium alloy
electronic speckle pattern interferometry
Opis:: Naprężenia resztkowe wpływają między innymi na takie właściwości eksploatacyjne części maszyn, jak odkształcenie, wytrzymałość statyczna i dynamiczna, zużycie materiału, czy też wytrzymałość stykowa. Zastosowanie elektronicznej interferometrii plamkowej do pomiarów naprężeń resztkowych umożliwia wyeliminowanie problemów, które występują w standardowej metodzie tensometrycznej tj. pozycjonowanie wiertła względem rozety tensometrycznej, czy też zdeterminowana liczba kierunków pomiaru naprężeń. W pracy przedstawiono zagadnienia związane z pomiarami naprężeń resztkowych z zastosowaniem elektronicznej interferencji plamkowej (ESPI), stopu tytanu Ti6Al5 (TitanGrade 5) po obróbce ściernej, z zastosowaniem systemu Prism firmy Stresstech Oy.
Residual stresses influence, among other parameters, on the performance characteristics of the machine, such as deformation, static and dynamic strength, material usage, or the strength of the contact. Extensional stresses as a result of abrasive machining reduce the fatigue strength for the dynamically loaded machine parts. It is preferred when the surface layer of the compressive stress is obtained. Therefore, it is recommended to reduce or remove most of the tensile stresses in the elements of the machine, for example, by reducing the value of technological parameters (feed-in). Note also that the type of occurring stresses depends also on the characteristics of the used grinding wheel, where the importance has the type of selected abrasive material. Grinding, eg. grinding wheel with aloxite grain is almost always the occurrence of tensile stresses, in contrast to CBN, which causes the formation of an compressive stresses in the surface layer. The article presents the issues related to the measurement of residual stresses by using electronic speckle pattern interference (ESPI), titanium alloy Ti6Al5 (TitanGrade 5), using a system of Stresstech Prism Oy. Stress measurements using ESPI can eliminate the problems that exist in the strain-gage method, such as the positioning of the axis of the drill in the center of the rosette hole, and only three directions of stress measurement (every 120 degrees). In the ESPI method stresses are recorded in all directions per-pendicular to the axis of the hole.
Źródło:: Pomiary Automatyka Kontrola; 2013, R. 59, nr 11, 11; 1223-1226
0032-4140
Pojawia się w:: Pomiary Automatyka Kontrola
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: The stress and strain distribution in X10CrMoVNb9-1 power engineering steel after long time degradation studied by the ESPI system
Autorzy:: Kopec, Mateusz
Powiązania:: https://bibliotekanauki.pl/articles/2173671.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: damage
P91 steel
electronic speckle pattern interferometry
ESPI
optical measurements
szkoda
stal P91
elektroniczna interferometria plamkowa
pomiar optyczny
Opis:: Maintenance of assets and equipment in power plants is essential for their safety and is required to help the plant stay active. In this paper, the specimens manufactured from a pipe of X10CrMoVNb9-1 (P91) power engineering steel in the as-received state and after operating for 80 000 h at internal pressure of 8.4 MPa and temperature of 540ºC were subjected to tests using electronic speckle pattern interferometry (ESPI) under static loading of up to 2.5 kN. Such a procedure enables assessment of strain and stress distribution maps to compare material integrity in the as-received state and after exploitation in its elastic range. The measurements conducted showed no effect of long time operation on the mechanical response of P91 steel under the power installations conditions since the field strain distributions for each type of specimen were found to be similar.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2022, 70, 3; art. no. e141181
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "electronic speckle pattern interferometry" wg kryterium: Temat

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język