Effect of Defect on the Compressive Response of Sandwich Structures with   Carbon Fiber Pyramidal Truss Cores

doi:10.1142/S1758825115400049

CORC > 北京大学 > 工学院

	Effect of Defect on the Compressive Response of Sandwich Structures with Carbon Fiber Pyramidal Truss Cores
	Chen, Mingji ; Zhu, Xiaolei ; Lei, Hongshuai ; Chen, Haosen ; Fang, Daining
刊名	international journal of applied mechanics
	2015
关键词	Pyramidal truss core composite defect effective modulus MECHANICAL-BEHAVIOR FAILURE MECHANISMS LATTICE STRUCTURES IMPACT RESPONSES COMPOSITES PANELS DEFORMATION SENSITIVITY PERFORMANCE HONEYCOMBS
DOI	10.1142/S1758825115400049
英文摘要	In the present study, the defect was introduced in the form of missing strut for the individual cell. The effect of defect on the compressive response of carbon-fiber pyramidal truss cores sandwich panel was investigated through experimental and theoretical methods. A series of sandwich panel sample with or without defect was fabricated, and compressive tests were performed at ambient temperature. Scanning electron microscopy (SEM) was conducted on the samples to evaluate the carbon-fiber distribution and failure mode. A revised theoretical model was proposed to predict the effect of defect considering the strut bending and shear behavior. Our results revealed that the compressive moduli of sandwich panel decrease linearly with the fraction of missing struts. Comparing with open-cell foams and honeycombs, the pyramidal truss has better defect tolerance. The theoretical result calculated by the proposed model was in general agreement with experimental result.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000349701400004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Mechanics; SCI(E); EI; 8; ARTICLE; mjchen81@gmail.com; zhuxiaolei856028@126.com; leihongshuai@hrbeu.edu.cn; chspla@163.com; fangdn@pku.edu.cn; 1; 7
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/386160]
专题	工学院
推荐引用方式 GB/T 7714	Chen, Mingji,Zhu, Xiaolei,Lei, Hongshuai,et al. Effect of Defect on the Compressive Response of Sandwich Structures with Carbon Fiber Pyramidal Truss Cores[J]. international journal of applied mechanics,2015.
APA	Chen, Mingji,Zhu, Xiaolei,Lei, Hongshuai,Chen, Haosen,&Fang, Daining.(2015).Effect of Defect on the Compressive Response of Sandwich Structures with Carbon Fiber Pyramidal Truss Cores.international journal of applied mechanics.
MLA	Chen, Mingji,et al."Effect of Defect on the Compressive Response of Sandwich Structures with Carbon Fiber Pyramidal Truss Cores".international journal of applied mechanics (2015).