Comparing Guidelines Concerning Construction of the S-N Curve within Limited Fatigue Life Range

The article collates guidelines concerning experimental construction of the S-N fatigue curves within a limited fatigue life range. An attempt is made to compare these guidelines, based on experimental data recorded during rotating bending of a notched specimen made of 42CrMo4. The recorded differen...

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Main Authors: Strzelecki Przemysław, Sempruch Janusz, Nowicki Krzysztof
Format: Article
Language:English
Published: Sciendo 2015-09-01
Series:Polish Maritime Research
Subjects:
Online Access:https://doi.org/10.1515/pomr-2015-0058
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author Strzelecki Przemysław
Sempruch Janusz
Nowicki Krzysztof
author_facet Strzelecki Przemysław
Sempruch Janusz
Nowicki Krzysztof
author_sort Strzelecki Przemysław
collection DOAJ
description The article collates guidelines concerning experimental construction of the S-N fatigue curves within a limited fatigue life range. An attempt is made to compare these guidelines, based on experimental data recorded during rotating bending of a notched specimen made of 42CrMo4. The recorded differences in fatigue life values between the constructed curves reach the maximum of 12.2%. According to the above guidelines, the number of tests in particular test series varies from 6 to 28. Based on the performed analysis a conclusion was made that the increase in the number of tests leads to the increase of accuracy but, on the other hand, remarkably increases the time of the experiment and, consequently, its cost. In this context, it is the research worker who, taking into account a possible future use of the fatigue curve, should individually decide about its accuracy.
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spelling doaj.art-ee0de039fc2c496787dec0ceb1bf5bd12022-12-21T23:07:31ZengSciendoPolish Maritime Research2083-74292015-09-01223677410.1515/pomr-2015-0058pomr-2015-0058Comparing Guidelines Concerning Construction of the S-N Curve within Limited Fatigue Life RangeStrzelecki Przemysław0Sempruch Janusz1Nowicki Krzysztof2University of Technology and Life Sciences in Bydgoszcz, PolandUniversity of Technology and Life Sciences in Bydgoszcz, PolandUniversity of Technology and Life Sciences in Bydgoszcz, PolandThe article collates guidelines concerning experimental construction of the S-N fatigue curves within a limited fatigue life range. An attempt is made to compare these guidelines, based on experimental data recorded during rotating bending of a notched specimen made of 42CrMo4. The recorded differences in fatigue life values between the constructed curves reach the maximum of 12.2%. According to the above guidelines, the number of tests in particular test series varies from 6 to 28. Based on the performed analysis a conclusion was made that the increase in the number of tests leads to the increase of accuracy but, on the other hand, remarkably increases the time of the experiment and, consequently, its cost. In this context, it is the research worker who, taking into account a possible future use of the fatigue curve, should individually decide about its accuracy.https://doi.org/10.1515/pomr-2015-0058high-cycle fatigues-n curvefatigue tests
spellingShingle Strzelecki Przemysław
Sempruch Janusz
Nowicki Krzysztof
Comparing Guidelines Concerning Construction of the S-N Curve within Limited Fatigue Life Range
Polish Maritime Research
high-cycle fatigue
s-n curve
fatigue tests
title Comparing Guidelines Concerning Construction of the S-N Curve within Limited Fatigue Life Range
title_full Comparing Guidelines Concerning Construction of the S-N Curve within Limited Fatigue Life Range
title_fullStr Comparing Guidelines Concerning Construction of the S-N Curve within Limited Fatigue Life Range
title_full_unstemmed Comparing Guidelines Concerning Construction of the S-N Curve within Limited Fatigue Life Range
title_short Comparing Guidelines Concerning Construction of the S-N Curve within Limited Fatigue Life Range
title_sort comparing guidelines concerning construction of the s n curve within limited fatigue life range
topic high-cycle fatigue
s-n curve
fatigue tests
url https://doi.org/10.1515/pomr-2015-0058
work_keys_str_mv AT strzeleckiprzemysław comparingguidelinesconcerningconstructionofthesncurvewithinlimitedfatigueliferange
AT sempruchjanusz comparingguidelinesconcerningconstructionofthesncurvewithinlimitedfatigueliferange
AT nowickikrzysztof comparingguidelinesconcerningconstructionofthesncurvewithinlimitedfatigueliferange