Elastic Buckling of Bionic Cylindrical Shells Based on Bamboo

IMR OpenIR

	Elastic Buckling of Bionic Cylindrical Shells Based on Bamboo
其他题名	Elastic Buckling of Bionic Cylindrical Shells Based on Bamboo
	Ma Jianfeng 1; Chen Wuyi 1; Zhao Ling 1; Zhao Dahai 2
	2008
发表期刊	JOURNAL OF BIONIC ENGINEERING
ISSN	1672-6529
卷号	5 期号:3 页码:231-238
摘要	High load-bearing efficiency is one of the advantages of biological structures after the evolution of billions of years. Biomimicking from nature may offer the potential for lightweight design. In the viewpoint of mechanics properties, the culm of bamboo comprises of two types of cells and the number of the vascular bundles takes a gradient of distribution. A three-point bending test was carried out to measure the elastic modulus. Results show that the elastic modulus of bamboo decreases gradually from the periphery towards the centre. Based on the structural characteristics of bamboo, a bionic cylindrical structure was designed to mimic the gradient distribution of vascular bundles and parenchyma cells. The buckling resistance of the bionic structure was compared with that of a traditional shell of equal mass under axial pressure by finite element simulations. Results show that the load-bearing capacity of bionic shell is increased by 124.8%. The buckling mode of bionic structure is global buckling while that of the conventional shell is local buckling.
其他摘要	High load-bearing efficiency is one of the advantages of biological structures after the evolution of billions of years. Biomimicking from nature may offer the potential for lightweight design. In the viewpoint of mechanics properties, the culm of bamboo comprises of two types of cells and the number of the vascular bundles takes a gradient of distribution. A three-point bending test was carried out to measure the elastic modulus. Results show that the elastic modulus of bamboo decreases gradually from the periphery towards the centre. Based on the structural characteristics of bamboo, a bionic cylindrical structure was designed to mimic the gradient distribution of vascular bundles and parenchyma cells. The buckling resistance of the bionic structure was compared with that of a traditional shell of equal mass under axial pressure by finite element simulations. Results show that the load-bearing capacity of bionic shell is increased by 124.8%. The buckling mode of bionic structure is global buckling while that of the conventional shell is local buckling.
关键词	STABILITY ANALYSIS EXTERNAL-PRESSURE bionic design bamboo culm thin-walled cylindrical structure buckling load-carrying efficiency
收录类别	CSCD
语种	英语
资助项目	[National Natural Science Foundation of China] ; [Aeronautical Science Foundation of China]
CSCD记录号	CSCD:3360178
引用统计	被引频次：22[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/158013
专题	中国科学院金属研究所
作者单位	1.Beijing University Aeronaut & Astronaut, Sch Mech Engn & Automat, Beijing 100083, Peoples R China 2.中国科学院金属研究所
推荐引用方式 GB/T 7714	Ma Jianfeng,Chen Wuyi,Zhao Ling,et al. Elastic Buckling of Bionic Cylindrical Shells Based on Bamboo[J]. JOURNAL OF BIONIC ENGINEERING,2008,5(3):231-238.
APA	Ma Jianfeng,Chen Wuyi,Zhao Ling,&Zhao Dahai.(2008).Elastic Buckling of Bionic Cylindrical Shells Based on Bamboo.JOURNAL OF BIONIC ENGINEERING,5(3),231-238.
MLA	Ma Jianfeng,et al."Elastic Buckling of Bionic Cylindrical Shells Based on Bamboo".JOURNAL OF BIONIC ENGINEERING 5.3(2008):231-238.