Collapse of Sharp-Notched 6061-T6 Aluminum Alloy Tubes under Cyclic Bending

Chen Cheng Chung, Kuo Long Lee, Wen Fung Pan

研究成果: Article同行評審

7 引文 斯高帕斯(Scopus)

摘要

The mechanical behavior and buckling failure of sharp-notched 6061-T6 aluminum alloy tubes with different notch depths subjected to cyclic bending are experimentally and theoretically investigated. The experimental moment-curvature relationship exhibits an almost steady loop from the beginning of the first cycle. However, the ovalization-curvature relationship exhibits a symmetrical, increasing, and ratcheting behavior as the number of cycles increases. The six groups of tubes tested have different notch depths, from which two different trends can be observed from the relationship between the controlled curvature and the number of cycles required to ignite buckling. Finite element software ANSYS is used to simulate the moment-curvature and ovalization-curvature relationships. Additionally, a theoretical model is proposed for simulation of the controlled curvature-number of cycles concerning the initiation of buckling. Simulation results are compared with experimental test data, which shows generally good agreement.

原文English
文章編號1550035
期刊International Journal of Structural Stability and Dynamics
16
發行號7
DOIs
出版狀態Published - 2016 9月 1

All Science Journal Classification (ASJC) codes

  • 土木與結構工程
  • 建築與營造
  • 航空工程
  • 海洋工程
  • 機械工業
  • 應用數學

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