Surface instability of microscale multilayer thin film system

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	Surface instability of microscale multilayer thin film system
	Wei YG(魏悦广); Jiang D; Cao AJ; Zhao HF
会议录名称	Materials Research Society Symposium Proceedings
	2004
会议名称	2004 MRS Fall Meeting
会议日期	November 29, 2004 - December 3, 2004
会议地点	Boston, MA, United states
摘要	Fundamental relations of surface instability for micro-scale multilayer thin film systems are derived based on the Hill and Hutchinson bifurcation theory and the volume average integral. In the present relations, a size effect is considered through generalizing the plastic hardening modulus to include the strain gradient hardening effects. By using the model, firstly, the parameter-controlled instability region is divided and analyzed, secondly, the surface instability of the multilayer thin Films are analyzed. In the surface instability analysis, several kinds of failure band formations are obtained, such as the kink bands and the compressive buckling bands in vertical direction and in inclined direction. Moreover, the failure mechanism of the multilayer thin film system due to surface instability is used to interpret the microstructure features of the surface-nanocrystallization materials. © 2005 Materials Research Society.
关键词	Gradient Hardening Effects Kink Bands Multilayer Thin Films Surface Instability Volume Average Integral
ISBN号	1558998063
收录类别	EI
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/60277
专题	力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Wei YG,Jiang D,Cao AJ,et al. Surface instability of microscale multilayer thin film system[C]Materials Research Society Symposium Proceedings,2004.

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