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タイトル: 薄板ガラスの熱応力割断における進展中き裂先端形状のその場観察
その他のタイトル: In-Situ Observation of Propagating-Crack Front Geometry in Thermal Stress Cleaving of Thin Glass Plates
著者: 本村, 文孝 / 今井, 康文 / 才本, 明秀
著者(別表記) : Motomura, Fumitaka / Imai, Yasufumi / Saimoto, Akihide
発行日: 2009年 7月
出版者: 日本機械学会
引用: 日本機械学会論文集. A編, 75(755), pp.925-932; 2009
抄録: Geometry of propagating crack front and crack opening displacement were observed in situ in thermal stress cleaving of thin soda-lime glass plates using the interference fringe method. The crack front inclines to the propgaating direction advancing more at the heated surface due to the temperature gradient in the thickness. Mode I stress intensity factor was estimated from measured COD and its distribution along the curved crack front was found to be almost uniform. The uniform distribution was also confirmed from three-dimensional thermal stress FEM analysis. When a crack length at the middle plane of the plate thickness is used, two-dimensional analysis gives good approximation of K1 attained at the propagating crack front
キーワード: Thermal Stress / Stress Intensity Factor / Thermal Stress Cleaving / Finite Element Method / Thin Glass Plate / Crack Opening Displacement / Interference Fringe Method
URI: http://hdl.handle.net/10069/22318
ISSN: 03875008
資料タイプ: Journal Article
原稿種類: publisher
出現コレクション:060 学術雑誌論文

引用URI : http://hdl.handle.net/10069/22318



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