面芯脱粘缺陷对复合材料夹芯圆柱壳屈曲特性影响分析

doi:10.11896/cldb.23070044

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (6351KB)
Export: BibTeX | EndNote (RIS)

Abstract Surface core debonding is a common damage type of composite sandwich structures. Considering the coupling effects of surface core interface damage evolution, layered buckling and layered extension, a method for predicting the ultimate bearing capacity of composite cylindrical shells under deep water static load was established. Based on the nonlinear ultimate load calculation method, the buckling characteristics of composite cylindrical shells with surface core disbonding defects were analyzed by prefabrication of initial defects, and the influence mechanism of typical surface core disbonding defects on the failure mode and bearing characteristics of composite cylindrical shells was revealed. The influence laws of different surface core disbonding types, disbonding sizes and disbonding positions were obtained. It is found that the failure mode of the structure evolves from global buckling to mixed buckling to local buckling with the increase of core disbonding length. The outer skin/core layer core stripping is more sensitive to the ultimate load bearing of the cylindrical shell with the core stripping of the annular through surface, and the inner skin/core layer interface stripping is more sensitive to the ultimate load bearing of the cylindrical shell with the core stripping of the longitudinal through surface. For multiple local circular core desticking, the more concentrated the longitudinal distribution and the more discrete the circumfe-rential distribution, the higher the structural ultimate load loss rate. The research results have a good guiding significance for the optimal design and reliability evaluation of cylindrical shells with surface core disbonding defects.

Key words： composite material face/core debond cylindrical shell buckling ultimate load

Published: 10 March 2024 Online: 2024-03-18

CLC number:

TB332.1

Fund:Natural Defense Science Technology Foundation of China(9140A14080914JB11044)and National Natural Science Foundation of China Youth Fund (5220110370).

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	CHEN Yue
	HUANG Jing
	ZHU Zixu
	LI Huadong

Cite this article:

CHEN Yue,HUANG Jing,ZHU Zixu, et al. Analysis of the Influence of Surface Core Debonding Defects on the Buckling Characteristics of Composite Cylindrical Shells[J]. Materials Reports, 2024, 38(5): 23070044-6.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.23070044 OR http://www.mater-rep.com/EN/Y2024/V38/I5/23070044

1 Tafreshi A, Bailey C G. Composite Structure, 2007, 80(1), 49.
2 El-sayed S, Sridharan S. International Journal of Fracture, 2002, 117(1), 63.
3 Zhu T. Numerical study of buckling and damage propagation of honeycomb sandwich structures with interfacial debonding. Mater's Thesis, Tianjin University, China, 2012(in Chinese).
朱涛. 含界面脱粘蜂窝夹芯结构的屈曲和损伤扩展数值研究. 硕士学位论文, 天津大学, 2012.
4 Pan S, Wang X F, Chen X F. Journal of Nanjing University of Aeronautics and Astronautics, 2019, 51(1), 35.
潘松, 王新峰, 陈晓烽. 南京航空航天大学学报, 2019, 51(1), 35.
5 Hao C Q. Study on ultimate bearing capacity of L-shaped joints of sandwich composites with damage. Mater's Thesis, Wuhan University of Technology, China, 2019(in Chinese).
郝传奇. 含有损伤的夹芯复合材料L型节点极限承载力研究. 硕士学位论文, 武汉理工大学, 2019.
6 Fu Y M, Yang J H. Applied Mathematics and Mechanics, 2007, 28(9), 1009(in Chinese).
傅衣铭, 杨金花. 应用数学和力学, 2007, 28(9), 1009.
7 Zhang H T. Study on delamination damage of composite laminates. Mater's Thesis, Civil Aviation University of China, China, 2009(in Chinese).
张焕铜. 复合材料层合壳脱层损伤研究. 硕士学位论文, 中国民航大学, 2009.
8 Moon C, Kim I H, Choi B H, et al. Composite Structure, 2010, 92, 2241.
9 Chen Y, Zhu X, Li H D, et al. Journal of Huazhong University of Science and Technology(Natural Science Edition), 2016, 44(7), 40(in Chinese).
陈悦, 朱锡, 李华东, 等. 华中科技大学学报(自然科学版), 2016, 44(7), 40.
10 Chen Y, Zhu X, Li H D, et al. Journal of Naval University of Engineering, 2016(6), 65(in Chinese).
陈悦, 朱锡, 李华东, 等. 海军工程大学学报, 2016(6), 65.
11 Pan S D, Wu L Z, Sun Y G. Chinese Journal of Composite Materials, 2007(6), 121(in Chinese).
泮世东, 吴林志, 孙雨果. 复合材料学报, 2007(6), 121.
12 Yu F, Cheng J, Wang X, et al. Composite Materials Science and Engineering, 2021(1), 5(in Chinese).
余芬, 程吉, 王轩, 等. 复合材料科学与工程, 2021(1), 5.
13 Chen Y, Zhu Z X, Li Y Q, et al. Journal of Naval University of Engineering, 2018, 30(2), 83(in Chinese).
陈悦, 朱子旭, 李永清, 等. 海军工程大学学报, 2018, 30(2), 83.