郝鹏

个人信息Personal Information

教授

博士生导师

硕士生导师

主要任职:Professor

其他任职:工程力学系主任

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:力学与航空航天学院

学科:固体力学. 航空航天力学与工程. 计算力学. 工程力学

联系方式:haopeng@dlut.edu.cn

电子邮箱:haopeng@dlut.edu.cn

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Grid-pattern optimization framework of novel hierarchical stiffened shells allowing for imperfection sensitivity

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论文类型:期刊论文

第一作者:Wang Bo

通讯作者:Hao, P (reprint author), Dalian Univ Technol, Dept Engn Mech, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China.

合写作者:Tian Kuo,Zhou Caihua,Hao Peng,Zheng Yanbing,Ma Yunlong,Wang Jiebing

发表时间:2017-03-01

发表刊物:AEROSPACE SCIENCE AND TECHNOLOGY

收录刊物:SCIE、EI

卷号:62

页面范围:114-121

ISSN号:1270-9638

关键字:Hierarchical stiffened shell; Imperfection sensitivity; Asymptotic homogenization method; Buckling; Grid-pattern optimization

摘要:Influenced by numerous local features, the post-buckling analysis and optimization for hierarchical stiffened shells suffer from heavy computational costs. By smearing the minor stiffeners based on a novel numerical implementation of asymptotic homogenization (NIAH) method, a novel hybrid model for hierarchical stiffened shells is presented. Then, the high prediction accuracy and efficiency of the hybrid model for post-buckling analysis and imperfection sensitivity analysis are validated. Furthermore, a grid pattern optimization framework of novel hierarchical stiffened shells allowing for imperfection sensitivity is established. The illustrative examples indicate that, the hierarchical stiffened shell with candidate substructures is more competitive in load-carrying capacity than that with the fixed grid-pattern, and the presence of imperfections would greatly affect the results of grid-pattern optimizations. (C) 2016 Elsevier Masson SAS. All rights reserved.