Effect of pitting corrosion on the load-carrying capacity of plate elements subjected to axial compression

Document Type : Civil Article

Authors

rafsanjan university

Abstract

Plate elements is one of the most important parts of structures specially ships and offshores structures. Pitting corrosion is one of the most important types of deterioration of steel structures. There have been many losses of the merchant vessels due to exposure to large environmentally induced forces. Residual strength assessment of damaged structures subjected to pitting corrosion is essential. Present study investigates the ultimate strength characteristics of plate elements with pit corrosion subjected to axil compressive loads. A series of ABAQUS non-linear FEM analysis of plates with partial depth corrosion pits are carried out, changing geometrical attributes of both pits and plates, i.e., the radius and depth of pits and the slenderness of plates. Simulation results show that the volume of corrosion loss, yielded stress, the loaded dimension have a remarkable influences than the depth and radius of corrosion pits on the ultimate strength of damaged steel plate elements by pitting corrosion.

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References

 
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Journal of Modeling in Engineering
Volume 16, Issue 55
December 2018
Pages 221-234

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History

  • Receive Date: 12 September 2014
  • Revise Date: 04 December 2017
  • Accept Date: 15 January 2018

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