Study on interaction between plate elements of high-strength aluminum thin-walled stiffened beams

被引：0
|
作者：
Niu R.-T. [1 ]
Liu W. [1 ]
Gao W.-C. [1 ]
机构：
[1] School of Astronautics, Harbin Institute of Technology, Harbin
来源：
Chuan Bo Li Xue/Journal of Ship Mechanics | 2019年 / 23卷 / 08期
关键词：
High-strength aluminum; Interaction; Numerical simulation; Testing study; Thin-walled stiffened beam; Ultimate resistance; Yield strength;
D O I：
10.3969/j.issn.1007-7294.2019.08.009
中图分类号：
学科分类号：
摘要：
The bending and the shearing behavior of a certain thin-walled beam made of high-strength aluminum is studied in this paper. Three types of testing models are designed referring to practical engineering. They are transversely stiffened beam, transversely stiffened beam with additional stopping-crack stringer and transversely stiffened beam with reinforced web opening. The testing results show that: (1) The failure of specimen results from local buckling of certain compressive flange which may bend in different directions; (2) Longitudinal stopping-crack stringer does not change structural load-bearing capacity; (3) Notably, reinforced opening in mid-span web significantly improves the flange resistance of the neighboring beam section, which reveals a new resistance interaction between plate element since the traditional knowledge considers that non-connect plate elements separated by transverse stiffener act independently. Then, a parametric analysis on material yield strength is performed through the validated finite element models and verifies that the interaction between plate elements grows with increase of yield strength of material. © 2019, Editorial Board of Journal of Ship Mechanics. All right reserved.
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页码：968 / 975
页数：7
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