Multi-challenge aspects in fatigue due to the combined occurrence of multiaxiality, variable amplitude loading, and size effects

The three major issues which contribute to uncertainties in fatigue life estimations are the limited transferability of material data obtained in a laboratory for describing the fatigue behavior of components, the lack of damage accumulation rules to realistically take into account the effects of...

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Main Author: M. Vormwald
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2015-07-01
Series:Fracture and Structural Integrity
Subjects:
Online Access:http://www.gruppofrattura.it/pdf/rivista/numero33/numero_33_art_31.pdf
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author M. Vormwald
author_facet M. Vormwald
author_sort M. Vormwald
collection DOAJ
description The three major issues which contribute to uncertainties in fatigue life estimations are the limited transferability of material data obtained in a laboratory for describing the fatigue behavior of components, the lack of damage accumulation rules to realistically take into account the effects of various load sequences, and the uncertainty in the assessment of multiaxial stress states. The three issues contribute to life prediction errors in a balanced way. Some modeling effort was spent in joining solution proposals in a unifying short crack model. The actual state is presented in the paper together with some ideas for further improvement as well as simplification for promoting the model’s acceptance in practical applications.
format Article
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institution Kabale University
issn 1971-8993
1971-8993
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publishDate 2015-07-01
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series Fracture and Structural Integrity
spelling doaj-art-99a56b6901f74d65829cd7b15a2042622025-02-03T10:39:05ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932015-07-0193325326110.3221/IGF-ESIS.33.31Multi-challenge aspects in fatigue due to the combined occurrence of multiaxiality, variable amplitude loading, and size effectsM. Vormwald0Technische Universität Darmstadt,GermanyThe three major issues which contribute to uncertainties in fatigue life estimations are the limited transferability of material data obtained in a laboratory for describing the fatigue behavior of components, the lack of damage accumulation rules to realistically take into account the effects of various load sequences, and the uncertainty in the assessment of multiaxial stress states. The three issues contribute to life prediction errors in a balanced way. Some modeling effort was spent in joining solution proposals in a unifying short crack model. The actual state is presented in the paper together with some ideas for further improvement as well as simplification for promoting the model’s acceptance in practical applications.http://www.gruppofrattura.it/pdf/rivista/numero33/numero_33_art_31.pdfMultiaxial fatigueShort crackCritical plane
spellingShingle M. Vormwald
Multi-challenge aspects in fatigue due to the combined occurrence of multiaxiality, variable amplitude loading, and size effects
Fracture and Structural Integrity
Multiaxial fatigue
Short crack
Critical plane
title Multi-challenge aspects in fatigue due to the combined occurrence of multiaxiality, variable amplitude loading, and size effects
title_full Multi-challenge aspects in fatigue due to the combined occurrence of multiaxiality, variable amplitude loading, and size effects
title_fullStr Multi-challenge aspects in fatigue due to the combined occurrence of multiaxiality, variable amplitude loading, and size effects
title_full_unstemmed Multi-challenge aspects in fatigue due to the combined occurrence of multiaxiality, variable amplitude loading, and size effects
title_short Multi-challenge aspects in fatigue due to the combined occurrence of multiaxiality, variable amplitude loading, and size effects
title_sort multi challenge aspects in fatigue due to the combined occurrence of multiaxiality variable amplitude loading and size effects
topic Multiaxial fatigue
Short crack
Critical plane
url http://www.gruppofrattura.it/pdf/rivista/numero33/numero_33_art_31.pdf
work_keys_str_mv AT mvormwald multichallengeaspectsinfatigueduetothecombinedoccurrenceofmultiaxialityvariableamplitudeloadingandsizeeffects