The Influence of Curvature-Rate on the Response and Collapse of Sharp-Notched Circular Tubes under Cyclic Bending

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概要

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• This paper presents the experimental result on the response and collapse of sharp-notched circular tubes subjected to cyclic bending with different curvature-rates. The tube bending machine and curvature-ovalization measurement apparatus were used for conducting the cyclic curvature-controlled experiments on sharp-notched 304 stainless steel tubes. According to the capacity of the bending machine, three different curvature-rates, 0.0035, 0.035 and 0.35 m-1s-1, were controlled to highlight the characteristic of the response and collapse. It is observed that the higher the applied curvature-rate, the greater is the degree of hardening on metal tube. However, the ovlization of tube cross-section increases when the applied curvature-rate increases. In addition, due to the higher degree of the ovalization of tube cross-section under cyclic bending, the number of cycles to produce collapse is corresponding reduces.

著者

• LEE Kuo-Long

  Department of Computer Application Engineering, Far East University.

関連論文

• The Influence of Curvature-Rate on the Response and Collapse of Sharp-Notched Circular Tubes under Cyclic Bending
• Experimental and Theoretical Evaluations of the Effect between Diameter-to-Thickness Ratio and Curvature-Rate on the Stability of Circular Tubes under Cyclic Bending

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