Integrated optimization of hybrid-stiffness stiffened shells based on sub-panel elements

被引：40

作者：

Hao, Peng ^{[1
]}

Wang, Bo ^{[1
]}

Tian, Kuo ^{[1
]}

Li, Gang ^{[1
]}

Du, Kaifan ^{[1
]}

Luan, Yu ^{[2
]}

机构：

[1] Dalian Univ Technol, Dept Engn Mech, State Key Lab Struct Anal Ind Equipment, Dalian 116023, Peoples R China

[2] Beijing Inst Astronaut Syst Engn, Beijing 100076, Peoples R China

来源：

THIN-WALLED STRUCTURES | 2016年 / 103卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Hybrid-stiffness stiffened shell; Sub-panel element; Buckling; Hybrid model; Integrated optimization; ASYMPTOTIC HOMOGENIZATION METHOD; LOAD-CARRYING CAPACITY; POSTBUCKLING ANALYSIS; CYLINDRICAL-SHELLS; DESIGN OPTIMIZATION; IMPERFECTION SENSITIVITY; SHAPE OPTIMIZATION; COMPOSITE PANELS; CUTOUTS; FORMULATION;

D O I：

10.1016/j.tws.2016.01.027

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A concept of hybrid-stiffness stiffened shell is proposed based on sub-panel elements to achieve a simultaneous buckling pattern, which can provide enhanced design flexibility to fully explore the load carrying capacity of structures. Then, a novel hybrid model is established to improve the computational efficiency of post-buckling analysis for stiffened shells, where the Numerical Implementation of Asymptotic Homogenization Method is utilized to smear out the stiffeners. On this basis, an integrated optimization framework of sub-panel configurations and weld lands for stiffened shells is presented. Illustrative examples with single and multiple cutouts demonstrate the effectiveness of the proposed framework based on the concept of hybrid-stiffness stiffened shell. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：171 / 182

页数：12

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