MEASUREMENT OF CRACK TIP DEFORMATIONS USING A GRID OF CIRCULAR DOTS

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Title:	MEASUREMENT OF CRACK TIP DEFORMATIONS USING A GRID OF CIRCULAR DOTS
Authors:	羅鵬飛 Luo, Perng-Fei
Contributors:	機械工程學系 Mechanical Engineering
Keywords:	插補橢圓;應力強度因子;3D視覺系統 Interpolated ellipse;Stress intensity factor;3D computer vision
Date:	2012
Issue Date:	2014-06-27 02:54:55 (UTC+8)
Abstract:	本文以3D電腦視覺量測I型破裂試件的應力強度因子KI，所採用的破裂試件為鋁合金6061-T6材料製成的CT (Compact tension)試件。本文於試件表面沿著與裂紋方向成60度的徑向線上，黏貼一組格點陣列，接著以3D電腦視覺系統，分別擷取CT試件變形前後之影像，以便利用插補橢圓法決定平面主應變的大小與方向，以求取應力強度因子。 A 3D computer vision was used to measure the stress intensity factor KI of a mode I fracture specimen. The fracture specimen used in this study was a compact tension (CT) specimen made of 6061-T6 aluminum. A grid of dots was positioned on the specimen sur
Appears in Collections:	[機械工程學系] 研討會論文

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