Development of ΔK-decreasing test method of the metal film by displacement constraint along the elliptical through hole-edge

A new ΔK-decreasing test method of the metal film was developed. The film was adhered to a through elliptical hole in a base plate and was fatigued in accordance with the displacement constraint along the hole-circumference in the base plate subjected to a cyclic stress. Commonly, a stress intensity...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Kenichi SHIMIZU, Yu KATO, Fumiya SAKATA
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2016
Materias:	metal film δk-decreasing test threshold stress intensity factor range crack opening displacement finite element method Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/f93982d9d2934b3382894c425952eaed
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:f93982d9d2934b3382894c425952eaed
record_format	dspace
spelling	oai:doaj.org-article:f93982d9d2934b3382894c425952eaed2021-11-26T06:58:32ZDevelopment of ΔK-decreasing test method of the metal film by displacement constraint along the elliptical through hole-edge2187-974510.1299/mej.16-00274https://doaj.org/article/f93982d9d2934b3382894c425952eaed2016-08-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/3/6/3_16-00274/_pdf/-char/enhttps://doaj.org/toc/2187-9745A new ΔK-decreasing test method of the metal film was developed. The film was adhered to a through elliptical hole in a base plate and was fatigued in accordance with the displacement constraint along the hole-circumference in the base plate subjected to a cyclic stress. Commonly, a stress intensity factor range was increased with a crack propagation under a constant stress amplitude but was decreased toward the hole-edge because of the difference in thickness between the film and the base plate in this ΔK-decreasing test method. The decrease in a stress intensity factor with a crack propagation was calculated by FEM analysis and the optimum aspect ratio of an elliptical hole was determined. Using the ΔK-decreasing test method, the crack propagation test was conducted for metal films. As a result, the fatigue crack propagation rate was decreased and was arrested near the hole-edge under the constant stress amplitude to the base plate. The threshold stress intensity factor ranges were obtained for some kinds of metal film and the accuracy of the testing method was discussed.Kenichi SHIMIZUYu KATOFumiya SAKATAThe Japan Society of Mechanical Engineersarticlemetal filmδk-decreasing testthreshold stress intensity factor rangecrack opening displacementfinite element methodMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 3, Iss 6, Pp 16-00274-16-00274 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	metal film δk-decreasing test threshold stress intensity factor range crack opening displacement finite element method Mechanical engineering and machinery TJ1-1570
spellingShingle	metal film δk-decreasing test threshold stress intensity factor range crack opening displacement finite element method Mechanical engineering and machinery TJ1-1570 Kenichi SHIMIZU Yu KATO Fumiya SAKATA Development of ΔK-decreasing test method of the metal film by displacement constraint along the elliptical through hole-edge
description	A new ΔK-decreasing test method of the metal film was developed. The film was adhered to a through elliptical hole in a base plate and was fatigued in accordance with the displacement constraint along the hole-circumference in the base plate subjected to a cyclic stress. Commonly, a stress intensity factor range was increased with a crack propagation under a constant stress amplitude but was decreased toward the hole-edge because of the difference in thickness between the film and the base plate in this ΔK-decreasing test method. The decrease in a stress intensity factor with a crack propagation was calculated by FEM analysis and the optimum aspect ratio of an elliptical hole was determined. Using the ΔK-decreasing test method, the crack propagation test was conducted for metal films. As a result, the fatigue crack propagation rate was decreased and was arrested near the hole-edge under the constant stress amplitude to the base plate. The threshold stress intensity factor ranges were obtained for some kinds of metal film and the accuracy of the testing method was discussed.
format	article
author	Kenichi SHIMIZU Yu KATO Fumiya SAKATA
author_facet	Kenichi SHIMIZU Yu KATO Fumiya SAKATA
author_sort	Kenichi SHIMIZU
title	Development of ΔK-decreasing test method of the metal film by displacement constraint along the elliptical through hole-edge
title_short	Development of ΔK-decreasing test method of the metal film by displacement constraint along the elliptical through hole-edge
title_full	Development of ΔK-decreasing test method of the metal film by displacement constraint along the elliptical through hole-edge
title_fullStr	Development of ΔK-decreasing test method of the metal film by displacement constraint along the elliptical through hole-edge
title_full_unstemmed	Development of ΔK-decreasing test method of the metal film by displacement constraint along the elliptical through hole-edge
title_sort	development of δk-decreasing test method of the metal film by displacement constraint along the elliptical through hole-edge
publisher	The Japan Society of Mechanical Engineers
publishDate	2016
url	https://doaj.org/article/f93982d9d2934b3382894c425952eaed
work_keys_str_mv	AT kenichishimizu developmentofdkdecreasingtestmethodofthemetalfilmbydisplacementconstraintalongtheellipticalthroughholeedge AT yukato developmentofdkdecreasingtestmethodofthemetalfilmbydisplacementconstraintalongtheellipticalthroughholeedge AT fumiyasakata developmentofdkdecreasingtestmethodofthemetalfilmbydisplacementconstraintalongtheellipticalthroughholeedge
_version_	1718409756865986560

Development of ΔK-decreasing test method of the metal film by displacement constraint along the elliptical through hole-edge

Ejemplares similares