Polar damage sum concept for constant amplitude proportional and nonproportional multiaxial fatigue analysis

This paper proposes a new concept for the evaluation of fatigue damage parameters. It is suggested that evaluation of fatigue damage may not necessarily be confined to a single plane, i.e., a critical plane. Rather, it is suggested here that the culmination of fatigue crack on a particular plane(s)...

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Autores principales:	Jafar Albinmousa, Mohammed Al Hussain
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Polar damage sum Critical plane Multiaxial fatigue Life estimation Non-proportional loading Mechanics of engineering. Applied mechanics TA349-359 Technology T
Acceso en línea:	https://doaj.org/article/90af33c4feb141aa85f87be0d72fd6df
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id	oai:doaj.org-article:90af33c4feb141aa85f87be0d72fd6df
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spelling	oai:doaj.org-article:90af33c4feb141aa85f87be0d72fd6df2021-11-18T04:51:53ZPolar damage sum concept for constant amplitude proportional and nonproportional multiaxial fatigue analysis2666-359710.1016/j.finmec.2021.100025https://doaj.org/article/90af33c4feb141aa85f87be0d72fd6df2021-10-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2666359721000160https://doaj.org/toc/2666-3597This paper proposes a new concept for the evaluation of fatigue damage parameters. It is suggested that evaluation of fatigue damage may not necessarily be confined to a single plane, i.e., a critical plane. Rather, it is suggested here that the culmination of fatigue crack on a particular plane(s) is due to the contributions of damage on all planes. Mathematically, the polar damage sum concept is calculated as the area enclosed by the polar curve of the damage parameter. The proposed concept is examined using multiaxial experimental data for six different alloys. A total of 241 samples are included in this study. Using the proposed concept, fatigue life estimations are improved compared to those obtained from the original critical plane based on Fatemi-Socie and Smith-Watson-Topper models.Jafar AlbinmousaMohammed Al HussainElsevierarticlePolar damage sumCritical planeMultiaxial fatigueLife estimationNon-proportional loadingMechanics of engineering. Applied mechanicsTA349-359TechnologyTENForces in Mechanics, Vol 4, Iss , Pp 100025- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Polar damage sum Critical plane Multiaxial fatigue Life estimation Non-proportional loading Mechanics of engineering. Applied mechanics TA349-359 Technology T
spellingShingle	Polar damage sum Critical plane Multiaxial fatigue Life estimation Non-proportional loading Mechanics of engineering. Applied mechanics TA349-359 Technology T Jafar Albinmousa Mohammed Al Hussain Polar damage sum concept for constant amplitude proportional and nonproportional multiaxial fatigue analysis
description	This paper proposes a new concept for the evaluation of fatigue damage parameters. It is suggested that evaluation of fatigue damage may not necessarily be confined to a single plane, i.e., a critical plane. Rather, it is suggested here that the culmination of fatigue crack on a particular plane(s) is due to the contributions of damage on all planes. Mathematically, the polar damage sum concept is calculated as the area enclosed by the polar curve of the damage parameter. The proposed concept is examined using multiaxial experimental data for six different alloys. A total of 241 samples are included in this study. Using the proposed concept, fatigue life estimations are improved compared to those obtained from the original critical plane based on Fatemi-Socie and Smith-Watson-Topper models.
format	article
author	Jafar Albinmousa Mohammed Al Hussain
author_facet	Jafar Albinmousa Mohammed Al Hussain
author_sort	Jafar Albinmousa
title	Polar damage sum concept for constant amplitude proportional and nonproportional multiaxial fatigue analysis
title_short	Polar damage sum concept for constant amplitude proportional and nonproportional multiaxial fatigue analysis
title_full	Polar damage sum concept for constant amplitude proportional and nonproportional multiaxial fatigue analysis
title_fullStr	Polar damage sum concept for constant amplitude proportional and nonproportional multiaxial fatigue analysis
title_full_unstemmed	Polar damage sum concept for constant amplitude proportional and nonproportional multiaxial fatigue analysis
title_sort	polar damage sum concept for constant amplitude proportional and nonproportional multiaxial fatigue analysis
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/90af33c4feb141aa85f87be0d72fd6df
work_keys_str_mv	AT jafaralbinmousa polardamagesumconceptforconstantamplitudeproportionalandnonproportionalmultiaxialfatigueanalysis AT mohammedalhussain polardamagesumconceptforconstantamplitudeproportionalandnonproportionalmultiaxialfatigueanalysis
_version_	1718424990392516608

Polar damage sum concept for constant amplitude proportional and nonproportional multiaxial fatigue analysis

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