Compression performances and failure maps of sandwich cylinders with pyramidal truss cores obtained through geometric mapping and snap-fit method

doi:10.1016/j.compstruct.2019.111212

IMECH-IR > 流固耦合系统力学重点实验室

	Compression performances and failure maps of sandwich cylinders with pyramidal truss cores obtained through geometric mapping and snap-fit method
	Wang JT(王江涛); Liu WF(刘文峰); Kang S(康帅); Ma T(马特); Wang Z(王喆); Yuan W(袁武); Song HW(宋宏伟); Huang CG(黄晨光)
发表期刊	COMPOSITE STRUCTURES
	2019-10
卷号	226 页码:111212
ISSN	0263-8223
摘要	The compressive behaviors and failure maps of lightweight all-metallic sandwich cylinders with pyramidal truss cores are studied experimentally and theoretically. Orthotropic truss cores are fabricated through geometric mapping and snap-fit method. Curved facesheets are bonded to the truss cores by two-times vacuum brazing approach to eliminate unbound nodes. The full-field deformation and strain of the sandwich cylinder are measured by using the 3D digital image correlation system. The local buckling of the facesheet, the mode of which is influenced by the truss cores, is observed during the experiment. Theoretical models are developed considering five possible failure modes of the sandwich cylinder under compression, namely, Euler buckling, global buckling of the cylinder, local buckling of facesheet, face yielding and core member buckling. Failure maps are constructed on the basis of the models. The typical failure modes obtained from numerical simulation are consistent with the theoretical prediction.
关键词	Sandwich cylinder Pyramidal lattice truss Failure modes Mechanical test
学科领域	Mechanics ; Materials Science, Composites
DOI	10.1016/j.compstruct.2019.111212
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000721067600001
项目资助者	National Natural Science Foundation of China [91016025, 11472276, 11602271, 11332011]
论文分区	一类
力学所作者排名	1
RpAuthor	Yuan, W (corresponding author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China.
引用统计	被引频次：17[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/90253
专题	流固耦合系统力学重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang JT,Liu WF,Kang S,et al. Compression performances and failure maps of sandwich cylinders with pyramidal truss cores obtained through geometric mapping and snap-fit method[J]. COMPOSITE STRUCTURES,2019,226:111212.Rp_Au:Yuan, W (corresponding author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China.
APA	王江涛.,刘文峰.,康帅.,马特.,王喆.,...&黄晨光.(2019).Compression performances and failure maps of sandwich cylinders with pyramidal truss cores obtained through geometric mapping and snap-fit method.COMPOSITE STRUCTURES,226,111212.
MLA	王江涛,et al."Compression performances and failure maps of sandwich cylinders with pyramidal truss cores obtained through geometric mapping and snap-fit method".COMPOSITE STRUCTURES 226(2019):111212.

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