期刊
JOURNAL OF REINFORCED PLASTICS AND COMPOSITES
卷 33, 期 16, 页码 1508-1519出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0731684414537881
关键词
Advanced grid stiffened; composite; finite element model; equivalent stiffness model; buckling
资金
- National Basic Research Program of China [2014CB046506]
- National Natural Science Foundation of China [11372058]
- Fundamental Research Funds for the Central Universities [DUT13LK28]
Advanced grid stiffened composite cylindrical shell is widely adopted in advanced structures due to its exceptional mechanical properties. Buckling is a main failure mode of advanced grid stiffened structures in engineering, which calls for increasing attention. In this paper, the buckling response of advanced grid stiffened structure is investigated by three different means including equivalent stiffness model, finite element model and a hybrid model (H-model) that combines equivalent stiffness model with finite element model. Buckling experiment is carried out on an advanced grid stiffened structure to validate the efficiency of different modeling methods. Based on the comparison, the characteristics of different methods are independently evaluated. It is arguable that, by considering the defects of material, finite element model is a suitable numerical tool for the buckling analysis of advanced grid stiffened structures.
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