The influence of the diameter-to-thickness ratio on the stability of circular tubes under cyclic bending

Kuo Long Lee, Wen Fung Pan, Ju Nan Kuo

研究成果: Article同行評審

52 引文 斯高帕斯(Scopus)

摘要

This paper presents the experimental results on the influence of the diameter-to-thickness ratio (D/t ratio) to the response and stability of circular tubes subjected to symmetrical cyclic bending. To highlight the influence of the D/t ratio to the response and stability of circular tubes under symmetrical cyclic bending, the raw tubes were slightly machined on the outside surface to obtain the desired D/t ratio. However, the magnitudes of the inside diameter were intact and the same for all tested specimens. It was observed that if a certain amount of controlled curvature is considered, specimens with smaller outside diameters have a few number of cycles to produce buckling than these with larger outside diameters. In addition, although four groups of tested specimens had four different D/t ratios, four parallel straight lines can be seen from the relationship between the controlled curvature and the number of cycles to produce buckling in log-log scale. Finally, the empirical relationship, proposed by Kyriakides and Shaw (1987), was modified so that it can be used for simulating the relationship between the controlled curvature and the number of cycles to produce buckling for circular tubes with different D/t ratios. The simulation was compared with the experimental test data. Good agreement between the experimental result and modified empirical relationship has been achieved.

原文English
頁(從 - 到)2401-2413
頁數13
期刊International Journal of Solids and Structures
38
發行號14
DOIs
出版狀態Published - 2001

All Science Journal Classification (ASJC) codes

  • 建模與模擬
  • 材料科學(全部)
  • 凝聚態物理學
  • 材料力學
  • 機械工業
  • 應用數學

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