Low-cycle fatigue behavior of stainless-steel elbows having local wall thinning

Elbow pipes present a complex stress field during deformation. The stress field becomes more complicated due to the wall thinning. Thus, predicting their failure behavior is difficult. In previous studies, low-cycle fatigue tests were performed on carbon steel elbow pipes, and a revised universal sl...

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Autores principales:	Yasuhiro ASHIBA, Yuu KOIZUMI, Koji TAKAHASHI, Akihiko HIRANO, Tsuneo TAKAYAMAGI, Yoshizumi FUKUHARA, Fuminori IWAMATSU
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2020
Materias:	elbow low-cycle fatigue multi-axial stress carbon steel stainless steel revised universal slope method Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/1c40a8ab383543a18af8896ebc698794
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spelling	oai:doaj.org-article:1c40a8ab383543a18af8896ebc6987942021-11-29T05:56:31ZLow-cycle fatigue behavior of stainless-steel elbows having local wall thinning2187-974510.1299/mej.19-00582https://doaj.org/article/1c40a8ab383543a18af8896ebc6987942020-01-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/7/3/7_19-00582/_pdf/-char/enhttps://doaj.org/toc/2187-9745Elbow pipes present a complex stress field during deformation. The stress field becomes more complicated due to the wall thinning. Thus, predicting their failure behavior is difficult. In previous studies, low-cycle fatigue tests were performed on carbon steel elbow pipes, and a revised universal slope method was proposed to predict their fatigue lives. However, the accuracy of predictions has not been verified on materials other than carbon steel. Therefore, in this study, low-cycle fatigue tests and a finite-element analysis were performed on carbon steel (STPT410) and stainless steel (SUS304) elbows. The low-cycle fatigue life of SUS304 elbows was observed to be three to four times longer than that of STPT410 elbows. Analysis of results revealed that the fatigue life predicted by the revised universal slope method shows a tendency similar to the experimental results, and the fatigue life of SUS304 can be predicted with high accuracy as well as STPT410.Yasuhiro ASHIBAYuu KOIZUMIKoji TAKAHASHIAkihiko HIRANOTsuneo TAKAYAMAGIYoshizumi FUKUHARAFuminori IWAMATSUThe Japan Society of Mechanical Engineersarticleelbowlow-cycle fatiguemulti-axial stresscarbon steelstainless steelrevised universal slope methodMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 7, Iss 3, Pp 19-00582-19-00582 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	elbow low-cycle fatigue multi-axial stress carbon steel stainless steel revised universal slope method Mechanical engineering and machinery TJ1-1570
spellingShingle	elbow low-cycle fatigue multi-axial stress carbon steel stainless steel revised universal slope method Mechanical engineering and machinery TJ1-1570 Yasuhiro ASHIBA Yuu KOIZUMI Koji TAKAHASHI Akihiko HIRANO Tsuneo TAKAYAMAGI Yoshizumi FUKUHARA Fuminori IWAMATSU Low-cycle fatigue behavior of stainless-steel elbows having local wall thinning
description	Elbow pipes present a complex stress field during deformation. The stress field becomes more complicated due to the wall thinning. Thus, predicting their failure behavior is difficult. In previous studies, low-cycle fatigue tests were performed on carbon steel elbow pipes, and a revised universal slope method was proposed to predict their fatigue lives. However, the accuracy of predictions has not been verified on materials other than carbon steel. Therefore, in this study, low-cycle fatigue tests and a finite-element analysis were performed on carbon steel (STPT410) and stainless steel (SUS304) elbows. The low-cycle fatigue life of SUS304 elbows was observed to be three to four times longer than that of STPT410 elbows. Analysis of results revealed that the fatigue life predicted by the revised universal slope method shows a tendency similar to the experimental results, and the fatigue life of SUS304 can be predicted with high accuracy as well as STPT410.
format	article
author	Yasuhiro ASHIBA Yuu KOIZUMI Koji TAKAHASHI Akihiko HIRANO Tsuneo TAKAYAMAGI Yoshizumi FUKUHARA Fuminori IWAMATSU
author_facet	Yasuhiro ASHIBA Yuu KOIZUMI Koji TAKAHASHI Akihiko HIRANO Tsuneo TAKAYAMAGI Yoshizumi FUKUHARA Fuminori IWAMATSU
author_sort	Yasuhiro ASHIBA
title	Low-cycle fatigue behavior of stainless-steel elbows having local wall thinning
title_short	Low-cycle fatigue behavior of stainless-steel elbows having local wall thinning
title_full	Low-cycle fatigue behavior of stainless-steel elbows having local wall thinning
title_fullStr	Low-cycle fatigue behavior of stainless-steel elbows having local wall thinning
title_full_unstemmed	Low-cycle fatigue behavior of stainless-steel elbows having local wall thinning
title_sort	low-cycle fatigue behavior of stainless-steel elbows having local wall thinning
publisher	The Japan Society of Mechanical Engineers
publishDate	2020
url	https://doaj.org/article/1c40a8ab383543a18af8896ebc698794
work_keys_str_mv	AT yasuhiroashiba lowcyclefatiguebehaviorofstainlesssteelelbowshavinglocalwallthinning AT yuukoizumi lowcyclefatiguebehaviorofstainlesssteelelbowshavinglocalwallthinning AT kojitakahashi lowcyclefatiguebehaviorofstainlesssteelelbowshavinglocalwallthinning AT akihikohirano lowcyclefatiguebehaviorofstainlesssteelelbowshavinglocalwallthinning AT tsuneotakayamagi lowcyclefatiguebehaviorofstainlesssteelelbowshavinglocalwallthinning AT yoshizumifukuhara lowcyclefatiguebehaviorofstainlesssteelelbowshavinglocalwallthinning AT fuminoriiwamatsu lowcyclefatiguebehaviorofstainlesssteelelbowshavinglocalwallthinning
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Low-cycle fatigue behavior of stainless-steel elbows having local wall thinning

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