OPTIMUM AUTOFRETTAGE PRESSURE IN THICK CYLINDERS

Authors

  • Amran Ayob Department ofApplied Mechanics, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia.
  • M. Kabashi Elbasheer Department ofApplied Mechanics, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia.

Keywords:

Autofrettage, pressure vessels, residual stress, plastic collapse, finite element analysis

Abstract

In optimal design of pressurised thick-walled cylinders, an increase in the
allowable internal pressure can be achieved by an autofrettage process. An
analysis is carried out on plain cylinders by using the von Mises and Tresca
yield criteria to develop a procedure in which the autofrettage pressure is
determined analytically, resulting in a reduced stress distribution. A validation
by a numerical simulation shows that the analytical and numerical simulations
correlate well in terms of trend and magnitude ofstresses.

References

Thumser, R.. Bergmann, J, W., Vormwald, M., 2002. Residual stress fields and fatigue analysis od autofrettage parts. Int Jnl Pressure Vessels and Piping, 79(2), 113-117.

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Published

2018-04-17

How to Cite

Ayob, A., & Elbasheer, M. K. (2018). OPTIMUM AUTOFRETTAGE PRESSURE IN THICK CYLINDERS. Jurnal Mekanikal, 24(2). Retrieved from https://jurnalmekanikal.utm.my/index.php/jurnalmekanikal/article/view/157

Issue

Issue 24: December 2007

Section

Mechanical

License

Copyright of articles that appear in Jurnal Mekanikal belongs exclusively to Penerbit Universiti Teknologi Malaysia (Penerbit UTM Press). This copyright covers the rights to reproduce the article, including reprints, electronic reproductions or any other reproductions of similar nature.

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