SOURCES OF DIFFERENCES IN CALCULATIONS AND EXPERIMENTAL TEST RESULTS OF FATIGUE LIFE OF STRUCTURAL ELEMENTS

Calculation results are the base for evaluation of fatigue life of structural elements during machine design processes. It results from the fact that there are no material objects in the phase of existence of a product. Reliability of tests results is an essential element in the calculation fatigue...

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Main Authors: Józef SZALA, Bogdan LIGAJ, Grzegorz SZALA
Format: Article
Language:English
Published: Silesian University of Technology 2014-06-01
Series:Scientific Journal of Silesian University of Technology. Series Transport
Subjects:
Online Access:http://www.polsl.pl/Wydzialy/RT/ZN_T/pelne_teksty/z83/271_ZN83_2014_SzalaLigajSzala.pdf
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author Józef SZALA
Bogdan LIGAJ
Grzegorz SZALA
author_facet Józef SZALA
Bogdan LIGAJ
Grzegorz SZALA
author_sort Józef SZALA
collection DOAJ
description Calculation results are the base for evaluation of fatigue life of structural elements during machine design processes. It results from the fact that there are no material objects in the phase of existence of a product. Reliability of tests results is an essential element in the calculation fatigue life evaluation method and it can be evaluated by comparison of the results with experimental ones. In the paper there was performed an analysis of the chosen factors essentially influencing conformity of calculation results and experimental test ones connected with basic elements of a calculation algorithm including: - elaboration and analysis of service loadings of a structural element, - determination and analysis of cyclic properties of structural elements, - selection of fatigue damage accumulation hypothesis being a description of fatigue life processes. The mentioned analysis was illustrated with examples of fatigue life tests performed in the Machine Design Department of the University of Technology and Agriculture within the research grant no. 2221/B/T02/2010/39 financed by The Ministry of Science and Higher Education and National Science Centre.
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spelling doaj.art-9e0d0b5a95f84cba8411923ba46cea992022-12-21T18:24:35ZengSilesian University of TechnologyScientific Journal of Silesian University of Technology. Series Transport0209-33242450-15492014-06-0183271277SOURCES OF DIFFERENCES IN CALCULATIONS AND EXPERIMENTAL TEST RESULTS OF FATIGUE LIFE OF STRUCTURAL ELEMENTSJózef SZALABogdan LIGAJGrzegorz SZALACalculation results are the base for evaluation of fatigue life of structural elements during machine design processes. It results from the fact that there are no material objects in the phase of existence of a product. Reliability of tests results is an essential element in the calculation fatigue life evaluation method and it can be evaluated by comparison of the results with experimental ones. In the paper there was performed an analysis of the chosen factors essentially influencing conformity of calculation results and experimental test ones connected with basic elements of a calculation algorithm including: - elaboration and analysis of service loadings of a structural element, - determination and analysis of cyclic properties of structural elements, - selection of fatigue damage accumulation hypothesis being a description of fatigue life processes. The mentioned analysis was illustrated with examples of fatigue life tests performed in the Machine Design Department of the University of Technology and Agriculture within the research grant no. 2221/B/T02/2010/39 financed by The Ministry of Science and Higher Education and National Science Centre.http://www.polsl.pl/Wydzialy/RT/ZN_T/pelne_teksty/z83/271_ZN83_2014_SzalaLigajSzala.pdffatigue lifestrength of materialsexperimental testssteelaluminium
spellingShingle Józef SZALA
Bogdan LIGAJ
Grzegorz SZALA
SOURCES OF DIFFERENCES IN CALCULATIONS AND EXPERIMENTAL TEST RESULTS OF FATIGUE LIFE OF STRUCTURAL ELEMENTS
Scientific Journal of Silesian University of Technology. Series Transport
fatigue life
strength of materials
experimental tests
steel
aluminium
title SOURCES OF DIFFERENCES IN CALCULATIONS AND EXPERIMENTAL TEST RESULTS OF FATIGUE LIFE OF STRUCTURAL ELEMENTS
title_full SOURCES OF DIFFERENCES IN CALCULATIONS AND EXPERIMENTAL TEST RESULTS OF FATIGUE LIFE OF STRUCTURAL ELEMENTS
title_fullStr SOURCES OF DIFFERENCES IN CALCULATIONS AND EXPERIMENTAL TEST RESULTS OF FATIGUE LIFE OF STRUCTURAL ELEMENTS
title_full_unstemmed SOURCES OF DIFFERENCES IN CALCULATIONS AND EXPERIMENTAL TEST RESULTS OF FATIGUE LIFE OF STRUCTURAL ELEMENTS
title_short SOURCES OF DIFFERENCES IN CALCULATIONS AND EXPERIMENTAL TEST RESULTS OF FATIGUE LIFE OF STRUCTURAL ELEMENTS
title_sort sources of differences in calculations and experimental test results of fatigue life of structural elements
topic fatigue life
strength of materials
experimental tests
steel
aluminium
url http://www.polsl.pl/Wydzialy/RT/ZN_T/pelne_teksty/z83/271_ZN83_2014_SzalaLigajSzala.pdf
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AT bogdanligaj sourcesofdifferencesincalculationsandexperimentaltestresultsoffatiguelifeofstructuralelements
AT grzegorzszala sourcesofdifferencesincalculationsandexperimentaltestresultsoffatiguelifeofstructuralelements