The response of 6061-T6 aluminum alloy tubes with different chop depths under cyclic bending

Kuo Long Lee, Ruey Terng Chern, Wen-Fung Pan

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this paper, the mechanical behavior and buckling failure of 6061-T6 aluminum alloy tubes with different chop depths subjected to cyclic bending were experimentally investigated. It can be seen that the moment-curvature relationship exhibits a steady loop from the first bending cycle. And, the chop depth has almost no influence on the moment-curvature relationship. However, the ovalization-curvature relationship exhibits an increasing and ratcheting manner with the number of the bending cycles. In addition, higher chop depth of a tube leads to a more severe unsymmetrical trend of the ovalization-curvature relationship. Furthermore, the 6061-T6 aluminum alloy tubes with five different chop depths were tested, five unparallel straight lines were found for the controlled curvature-number of cycles to produce buckling relationship in the log-log scale. Finally, the theoretical model proposed by Kyriakides and Shaw in 1987 was modified in this study for simulating the controlled curvature-number of cycles to produce buckling relationship. Through comparison with the experimental data, the theoretical model can properly simulate the experimental findings.

Original languageEnglish
Pages (from-to)19-29
Number of pages11
JournalChung Cheng Ling Hsueh Pao/Journal of Chung Cheng Institute of Technology
Volume45
Issue number1
Publication statusPublished - 2016 May 1

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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