漣漪差排之滑移機制

淡江大學機構典藏 > 工學院 > 機械與機電工程學系暨研究所 > 學位論文 > Item 987654321/74657

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题名:	漣漪差排之滑移機制
其它题名:	Slip mechanism of ripple dislocations
作者:	莊郁凡;Chuang, Yu-Fan
贡献者:	淡江大學機械與機電工程學系碩士班林清彬
关键词:	漣漪差排;Ripple dislocation;Slip;dynamics;Newton motion law;滑移;動力學;牛頓運動定律
日期:	2011
上传时间:	2011-12-28 19:12:46 (UTC+8)
摘要:	漣漪差排滑移的機制與動力學已被研究。PDMS薄膜給予一固定拉伸應變後鍍金，接著釋放拉伸應變，薄膜會形成漣漪結構、排向表面裂縫、裂痕及漣漪差排。若將同時具漣漪差排的試片給予和漣漪正交方向夾一角度之拉伸應力，發現漣漪差排會產生滑移現象，且漣漪差排滑移的動力學符合牛頓運動定律，其中滑移速度隨拉伸應力及拉伸應變增加而增加及減少。 Slip mechanism of ripple dislocation has been investigated. A tension stress was applied in the polydimethylsiloxane (PDMS) film, next the following steps was should be done: fixed tensile strain, sputtering a gold layer on the surface of the film, releasing the tensile strain, a large-scale area ripple structure is formed. During the process of forming the ripple structure, there will be the ripple dislocations, the cracks and the oriented surface cracks simultaneously appearing within the ripple structure. In addition, this study also explored the amount of tensile stress and tensile strain effect on the slip velocity of the ripple dislocation. The slip kinetic of ripple dislocation obeys the Newton motion law and the slip velocity of ripple dislocation increases in tensile stress increase or decreases in tensile strain.
显示于类别:	[機械與機電工程學系暨研究所] 學位論文

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