Evaluation of mixed-mode thermal stress intensity factor in glass plates at various temperatures (Effect of crack width on the sign of the SIF)

Mixed-mode thermal stress intensity factors (SIFs) are investigated at various temperatures using the method of caustics. First, theoretical caustic patterns are obtained for various types of optical systems in addition to the mode II SIF KII and mode I SIF KI ratios. Next, the values of the SIF a...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Masahiro SUETSUGU, Kouichi SEKINO
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2015
Materias:	thermal stress stress intensity factor mixed-mode fracture caustics glass plate Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/e68ab441f39149baa17a799dc84ad54e
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:e68ab441f39149baa17a799dc84ad54e
record_format	dspace
spelling	oai:doaj.org-article:e68ab441f39149baa17a799dc84ad54e2021-11-26T06:16:58ZEvaluation of mixed-mode thermal stress intensity factor in glass plates at various temperatures (Effect of crack width on the sign of the SIF)2187-974510.1299/mej.14-00317https://doaj.org/article/e68ab441f39149baa17a799dc84ad54e2015-01-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/2/1/2_14-00317/_pdf/-char/enhttps://doaj.org/toc/2187-9745Mixed-mode thermal stress intensity factors (SIFs) are investigated at various temperatures using the method of caustics. First, theoretical caustic patterns are obtained for various types of optical systems in addition to the mode II SIF KII and mode I SIF KI ratios. Next, the values of the SIF are experimentally investigated at various temperatures for glass plates with an inclined artificial notch or a natural crack, and the effect of the crack on the sign of the SIF is considered. Then, it is determined whether or not crack extension occurs. It is shown that a negative value of the SIF KI occurs at the notch tip under high-temperature conditions. In contrast, the sign of the SIF KI at the natural crack tip under high-temperature conditions is positive. At low temperatures, the signs of the SIFs at the notch and the natural crack tip are positive. Crack propagation is observed when the sign of KI is positive. The direction of crack propagation initiating from the natural crack at high temperatures is in accordance with the theory of maximum circumferential tensile stress (σθ)max. At low temperatures, the crack extends slightly, and thereafter, the direction of crack propagation abruptly changes because of the compressive stress in front of the notch and the natural crack tip.Masahiro SUETSUGUKouichi SEKINOThe Japan Society of Mechanical Engineersarticlethermal stressstress intensity factormixed-mode fracturecausticsglass plateMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 2, Iss 1, Pp 14-00317-14-00317 (2015)
institution	DOAJ
collection	DOAJ
language	EN
topic	thermal stress stress intensity factor mixed-mode fracture caustics glass plate Mechanical engineering and machinery TJ1-1570
spellingShingle	thermal stress stress intensity factor mixed-mode fracture caustics glass plate Mechanical engineering and machinery TJ1-1570 Masahiro SUETSUGU Kouichi SEKINO Evaluation of mixed-mode thermal stress intensity factor in glass plates at various temperatures (Effect of crack width on the sign of the SIF)
description	Mixed-mode thermal stress intensity factors (SIFs) are investigated at various temperatures using the method of caustics. First, theoretical caustic patterns are obtained for various types of optical systems in addition to the mode II SIF KII and mode I SIF KI ratios. Next, the values of the SIF are experimentally investigated at various temperatures for glass plates with an inclined artificial notch or a natural crack, and the effect of the crack on the sign of the SIF is considered. Then, it is determined whether or not crack extension occurs. It is shown that a negative value of the SIF KI occurs at the notch tip under high-temperature conditions. In contrast, the sign of the SIF KI at the natural crack tip under high-temperature conditions is positive. At low temperatures, the signs of the SIFs at the notch and the natural crack tip are positive. Crack propagation is observed when the sign of KI is positive. The direction of crack propagation initiating from the natural crack at high temperatures is in accordance with the theory of maximum circumferential tensile stress (σθ)max. At low temperatures, the crack extends slightly, and thereafter, the direction of crack propagation abruptly changes because of the compressive stress in front of the notch and the natural crack tip.
format	article
author	Masahiro SUETSUGU Kouichi SEKINO
author_facet	Masahiro SUETSUGU Kouichi SEKINO
author_sort	Masahiro SUETSUGU
title	Evaluation of mixed-mode thermal stress intensity factor in glass plates at various temperatures (Effect of crack width on the sign of the SIF)
title_short	Evaluation of mixed-mode thermal stress intensity factor in glass plates at various temperatures (Effect of crack width on the sign of the SIF)
title_full	Evaluation of mixed-mode thermal stress intensity factor in glass plates at various temperatures (Effect of crack width on the sign of the SIF)
title_fullStr	Evaluation of mixed-mode thermal stress intensity factor in glass plates at various temperatures (Effect of crack width on the sign of the SIF)
title_full_unstemmed	Evaluation of mixed-mode thermal stress intensity factor in glass plates at various temperatures (Effect of crack width on the sign of the SIF)
title_sort	evaluation of mixed-mode thermal stress intensity factor in glass plates at various temperatures (effect of crack width on the sign of the sif)
publisher	The Japan Society of Mechanical Engineers
publishDate	2015
url	https://doaj.org/article/e68ab441f39149baa17a799dc84ad54e
work_keys_str_mv	AT masahirosuetsugu evaluationofmixedmodethermalstressintensityfactoringlassplatesatvarioustemperatureseffectofcrackwidthonthesignofthesif AT kouichisekino evaluationofmixedmodethermalstressintensityfactoringlassplatesatvarioustemperatureseffectofcrackwidthonthesignofthesif
_version_	1718409815131160576

Evaluation of mixed-mode thermal stress intensity factor in glass plates at various temperatures (Effect of crack width on the sign of the SIF)

Ejemplares similares