Experimental Study in Determining the Stress Intensity Factor by Using the Grid Method

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Title:	Experimental Study in Determining the Stress Intensity Factor by Using the Grid Method
Authors:	羅鵬飛 Luo, Perng-Fei
Contributors:	機械工程學系 Mechanical Engineering
Keywords:	圓形格點;橢圓;應力強度因子;2D電腦視覺 circle grid;ellipse;stress intensity factor;2D computer vision
Date:	2013
Issue Date:	2014-06-27 02:55:39 (UTC+8)
Abstract:	本文以格點法量測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起始自裂紋尖端的徑向線上，黏貼一組格點陣列。本文以2D電腦視覺系統，擷取CT試件變形前後之影像，以便利用單格點應變法求取各格點之主應變的大小及方向。實驗結果顯示在三維效應所影響的區域外，所得到的量測應變，可精確的決定KI值。 Grid method 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 bonded along a radial line on the surfa
Appears in Collections:	[Department of Mechanical Engineering] Seminar papers

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