Deformation and failure mechanisms of lattice cylindrical shells under axial loading | |
Zhang, Yihui ; Xue, Zhenyu ; Chen, Liming ; Fang, Daining | |
2010-10-12 ; 2010-10-12 | |
关键词 | Lattice structures Cylindrical shell Optimization Structural failure HONEYCOMBS ACTUATION CYLINDER DESIGN YIELD Engineering, Mechanical Mechanics |
中文摘要 | The lattice cylindrical shells wound from the planar lattice plates, which have significant applications in aerospace engineering, exhibit different deformation modes with their planar counterparts because of the curvature of the cell wall. In this paper, deformation mechanisms are systematically investigated and failure analyses are conducted for the lattice cylindrical shells with various core topologies. Analytical models are proposed to predict the axial stiffness, critical elastic buckling load or effective yield strength of these shells. Finite element simulations are carried out to identify the validity of the models. The models can be employed for the optimal design. As an example, we construct the failure map for the Kagome lattice cylindrical shell made from an elastic ideally-plastic material, Various failure mechanisms, including yielding, global elastic buckling and local elastic buckling are taken into account. Moreover, optimizations are performed to minimize the weight for a given stiffness or load-carrying capacity for three types of lattice cylindrical shells. It is found that the Kagome and triangular lattice cylindrical shells have almost equivalent load-bearing capacity and both significantly Outperform the hexagonal one under axial compression. (C) 2009 Elsevier Ltd. All rights reserved. |
语种 | 英语 ; 英语 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD ; OXFORD ; THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND |
内容类型 | 期刊论文 |
源URL | [http://hdl.handle.net/123456789/81957] |
专题 | 清华大学 |
推荐引用方式 GB/T 7714 | Zhang, Yihui,Xue, Zhenyu,Chen, Liming,et al. Deformation and failure mechanisms of lattice cylindrical shells under axial loading[J],2010, 2010. |
APA | Zhang, Yihui,Xue, Zhenyu,Chen, Liming,&Fang, Daining.(2010).Deformation and failure mechanisms of lattice cylindrical shells under axial loading.. |
MLA | Zhang, Yihui,et al."Deformation and failure mechanisms of lattice cylindrical shells under axial loading".(2010). |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论