龜裂管結構之力學模型建立及解析

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Title:	龜裂管結構之力學模型建立及解析
Other Titles:	A Model and Analysis for Structural Pipe with Crack
Authors:	劉松柏;陳世徵;史建中
Contributors:	淡江大學機械與機電工程學系
Keywords:	裂縫擴張;極限分析;彈塑性破壞力學;塑性鉸;Crack Propagation;Limit Analysis;Elastoplastic Fracture Mechanics;Plastic Hinge
Date:	1998-12-19
Issue Date:	2010-01-11 14:41:58 (UTC+8)
Abstract:	本文主要針對管路結構, 考慮存在龜裂的情形, 建立一力學模型。以極限解析手法及彈塑性破壞力學的綜合解析手法, 利用簡易的柔度及J積分的評價方法, 對於龜裂夾角, 材料的破壞韌性值J/sub IC/與龜裂傳播抵抗dJ/da等影響管路結構因子, 進行探討。以了解其塑性鉸形成狀況、龜裂進展分布情形、變位與龜裂夾角的對應關係、以及其塑性崩壞行為。 This paper proposes an analytical model for a structural pipe system with crack. We combine the limit analysis, elastic-plastic fracture mechanics and utilize simple compliance and J-integral. Then we study those factors of crack-angle, J/sub IC/ and dJ/da that influencing pipe structure. At the end, we can conclude how the plastic hinge happen, the crack progress and the relation between the displacement and crack-angle at the crack.
Relation:	中華民國力學學會第廿二屆全國力學會議論文集(二)=Proceedings of the 22nd National Conference on Theoretical and Applied Mechanics (II)，頁173-180
Appears in Collections:	[Graduate Institute & Department of Mechanical and Electro-Mechanical Engineering] Proceeding

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