Effects of local damage on vibration characteristics of composite pyramidal truss core sandwich structure

	Effects of local damage on vibration characteristics of composite pyramidal truss core sandwich structure
	Lou J.; Wu L. Z.; Ma L.; Xiong J.; Wang B.
	2014
发表期刊	Composites Part B-Engineering
ISSN	ISBN/1359-8368
期号	62 页码:73-87
摘要	The effects of local damage on the natural frequencies and the corresponding vibration modes of composite pyramidal truss core sandwich structures are studied in the present paper. Hot press molding method is used to fabricate intact and damaged pyramidal truss core sandwich structures, and modal testing is carried out to obtain their natural frequencies. A FEM model is also constructed to investigate their vibration characteristics numerically. It is found that the calculated natural frequencies are in relatively good agreement with the measured results. By using the experimentally validated FEM model, a series of numerical analyses are conducted to further explore the effects of damage extent, damage location, damage form on the vibration characteristics of composite pyramidal truss core sandwich structures as well as the influence of boundary conditions. The conclusion derived from this study is expected to be useful for analyzing practical problems related to structural health monitoring of composite lattice sandwich structures. (C) 2014 Elsevier Ltd. All rights reserved.
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/43941
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Lou J.,Wu L. Z.,Ma L.,et al. Effects of local damage on vibration characteristics of composite pyramidal truss core sandwich structure[J]. Composites Part B-Engineering,2014(62):73-87.
APA	Lou J.,Wu L. Z.,Ma L.,Xiong J.,&Wang B..(2014).Effects of local damage on vibration characteristics of composite pyramidal truss core sandwich structure.Composites Part B-Engineering(62),73-87.
MLA	Lou J.,et al."Effects of local damage on vibration characteristics of composite pyramidal truss core sandwich structure".Composites Part B-Engineering .62(2014):73-87.

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