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Journal of Failure Analysis and Prevention

, Volume 16, Issue 5, pp 912–918 | Cite as

Buckling Analysis of Corroded Angle Beams with Irregular Random Surfaces

  • Ahmad Rahbar Ranji
Technical Article---Peer-Reviewed

Abstract

Yielding, excessive deformation, brittle fracture, fatigue, and elastic buckling are different modes of failure of structures. Buckling or instability occurs in structures under compressive stresses. Corrosion is a time-dependent degradation which reduces load-bearing capacity. This article investigates the detrimental effect of corrosion on reduction of elastic buckling strength of angle beams with irregular random surfaces. Different corrosion patterns and corrosion parameters are considered. Comparing the results with those available in the literature, it indicates that simulation technique used in this study has good accuracy and applicability for simulation of irregular random surfaces of corroded structures. It also shows that neglecting irregular random surface of corroded angle beams could leads up to 6% overestimation of buckling load. It is found that irregularity of surface has little influence on reduction of buckling load when roughness is low, however, for high values of roughness, the more roughness of surface the lower buckling strength of angle beams.

Keywords

Corrosion Angle beams Buckling load FEM Irregular random surface 

References

  1. 1.
    G. Wang, J. Spencer, H. Sun, Assessment of corrosion risks to aging ships using an experience database. J. Offshore Mech. Arctic Eng. 127(2), 167–174 (2005)CrossRefGoogle Scholar
  2. 2.
    T. Nakai, H. Matsushita, N. Yamamoto, Effect of pitting corrosion on the ultimate strength of steel plates subjected to in-plane compression and bending. J. Mar. Sci. Technol. 11(1), 52–64 (2006)CrossRefGoogle Scholar
  3. 3.
    J. Xue, Asymtotic analysis for buckling of undersea corroded pipelines. J. Press. Vessel Technol. 130(2), 021705 (2008)CrossRefGoogle Scholar
  4. 4.
    A. Rahbar-Ranji, Stress analysis of a randomly undulated plate due to corrosion in marine structures. PhD Thesis, Yokohama National University, Department of Naval Architecture, Japan, 2001Google Scholar
  5. 5.
    A. Rahbar-Ranji, Plastic collapse load of corroded steel plates. Sadhana Acad. Proc. Eng. Sci. 37(3), 341–349 (2012)Google Scholar
  6. 6.
    A. Rahbar-Ranji, Ultimate strength of corroded steel plates with irregular surfaces under in-plane compression. Ocean Eng. 54, 261–269 (2012)CrossRefGoogle Scholar
  7. 7.
    A. Rahbar-Ranji, Elastic buckling strength of corroded steel plates. Sadhana Acad. Proc. Eng. Sci. 38(1), 89–99 (2013)Google Scholar
  8. 8.
    A. Rahbar-Ranji, Buckling analysis of partially corroded steel plates with irregular surfaces. Sadhana Acad. Proc. Eng. Sci. 39(2), 511–524 (2014)Google Scholar
  9. 9.
    A. Rahbar-Ranji, Elastic tripping analysis of corroded stiffeners in stiffened plate with irregular surfaces. J. Mech. Sci. Technol. 28(9), 3629–3636 (2014)CrossRefGoogle Scholar
  10. 10.
    A. Rahbar-Ranji, Elastic buckling analysis of corroded stiffened plates with irregular surfaces. Sadhana Acad. Proc. Eng. Sci. 40(1), 199–213 (2015)Google Scholar
  11. 11.
    K. Oszvald, L. Dunai, Effect of corrosion on the buckling of steel angle elements. 8th fib PhD Symposium in Kgs. Lyngby, Denmark, 2010Google Scholar
  12. 12.
    L.V. Beaulieu, F. Legeron, S. Langlois, Compression strength of corroded steel angle members. J. Constr. Steel Res. 66, 1366–1373 (2010)CrossRefGoogle Scholar
  13. 13.
    Y. Goda, Numerical experiments on wave statistics with spectral simulation. Rep. Port Harbor Res. Inst. 9(3), 3–57 (1970)Google Scholar
  14. 14.
    S.P. Timoshenko, J.M. Gere, Theory of Elastic Stability, 2nd edn. Engineering Societies Monograph (McGraw Hill, New York, 1961)Google Scholar

Copyright information

© ASM International 2016

Authors and Affiliations

  1. 1.Department of Ocean EngineeringAmirKabir University of TechnologyTehranIran

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