Local damage and imperfection sensitivities of pyramidal core sandwich cylinders

doi:10.1016/j.tws.2024.112020

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Local damage and imperfection sensitivities of pyramidal core sandwich cylinders
	Kang, Shuai 1,2; Yuan, Wu 1,2; Song, Hongwei 1,2
刊名	THIN-WALLED STRUCTURES
	2024-08-01
卷号	201 页码:22
关键词	Pyramidal core sandwich cylinders Local damage Imperfections Knockdown factor Failure modes
ISSN号	0263-8231
DOI	10.1016/j.tws.2024.112020
通讯作者	Yuan, Wu(yuanwu@imech.ac.cn)
英文摘要	Local damage and imperfections may affect the loading capacity of truss core sandwich cylinders. This study develops a numerical model to investigate the effects of missing lattice struts, unbound nodes, openings, and eigenmode-shape imperfections on the buckling and post-buckling behavior of pyramidal core sandwich cylinders. Results from the numerical model show that the pyramidal core sandwich cylinder is sensitive to missing struts and unbound nodes when local buckling is the main failure model. Critical loads show a gradual decrease as the opening damage increases. Pyramidal core sandwich cylinders are not sensitive to eigenmode-shape imperfections compared to the equivalent single-walled shells.
资助项目	National Natural Science Foundation of China[11972035] ; National Natural Science Foundation of China[12272379] ; National Natural Science Foundation of China[12232020]
WOS关键词	COMPOSITE CYLINDRICAL-SHELLS ; ROBUST KNOCKDOWN FACTORS ; STIFFENED SHELLS ; AXIAL-COMPRESSION ; BUCKLING LOAD ; DESIGN ; BEHAVIOR ; OPTIMIZATION ; OPENINGS ; CUTOUTS
WOS研究方向	Engineering ; Mechanics
语种	英语
WOS记录号	WOS:001246574100001
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/95666]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
通讯作者	Yuan, Wu
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Kang, Shuai,Yuan, Wu,Song, Hongwei. Local damage and imperfection sensitivities of pyramidal core sandwich cylinders[J]. THIN-WALLED STRUCTURES,2024,201:22.
APA	Kang, Shuai,Yuan, Wu,&Song, Hongwei.(2024).Local damage and imperfection sensitivities of pyramidal core sandwich cylinders.THIN-WALLED STRUCTURES,201,22.
MLA	Kang, Shuai,et al."Local damage and imperfection sensitivities of pyramidal core sandwich cylinders".THIN-WALLED STRUCTURES 201(2024):22.