A Study on the Bending Instability and Wrinkling Characteristics of Thin-Walled Circular Tubes Stiffened with Pads

Huaiyu Peng; Zhenqiang Li; Ruitao Niu; Cancan Ba

doi:10.47297/taposatWSP2633-456914.20250611

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A Study on the Bending Instability and Wrinkling Characteristics of Thin-Walled Circular Tubes Stiffened with Pads

Volume 6, Issue 11

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A Study on the Bending Instability and Wrinkling Characteristics of Thin-Walled Circular Tubes Stiffened with Pads
A Study on the Bending Instability and Wrinkling Characteristics of Thin-Walled Circular Tubes Stiffened with Pads
1.School of Microelectronics & Data Science, Anhui University of Technology, Ma'anshan, Anhui, 243032, China
2.School of Aerospace Engineering, Zhengzhou University of Aeronautics, Zhengzhou, Henan, 450046, China
3.School of International, Xinyang Normal University, Xinyang, Henan, 464000, China
Vol. 6, Issue 11, Pages: 76-81(2025)
Published：30 November 2025
DOI：10.47297/taposatWSP2633-456914.20250611
Accepted：

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Peng Huaiyu,Li Zhenqiang,Niu Ruitao,et al.A Study on the Bending Instability and Wrinkling Characteristics of Thin-Walled Circular Tubes Stiffened with Pads[J].Theory and Practice of Science and Technology,2025,06(11):76-81.
DOI：

Peng Huaiyu,Li Zhenqiang,Niu Ruitao,et al.A Study on the Bending Instability and Wrinkling Characteristics of Thin-Walled Circular Tubes Stiffened with Pads[J].Theory and Practice of Science and Technology,2025,06(11):76-81. DOI： 10.47297/taposatWSP2633-456914.20250611.

摘要

Abstract

To investigate the bending instability and wrinkling characteristics of thin-walled circular tubes reinforced with pads

a three-dimensional finite element model of the thin-walled tube was developed

followed by an eigenvalue buckling analysis. The influence of the geometric parameters of the thin-walled tube on the buckling factor and buckling modes was analyzed. The study found that the length of the pad has a significant impact on the load-bearing capacity; results indicate that a longer pad leads to a lower load-bearing capacity of the thin-walled tube. As the thickness of the pad increases

the buckling factor of the thin-walled tube generally shows a decreasing trend. Conversely

as the angle of the pad increases

the buckling factor generally exhibits an increasing trend.

关键词

Keywords

references

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