Residual strength of pitted mild steel plates subjected to biaxial compression

Xiaoli Jiang, C. Guedes Soares

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

1 Citation (Scopus)

Abstract

The present paper focus on the residual strength of pitted mild steel rectangular plate under biaxial compression. This paper aims to propose a general and practical formula to predict the residual strength of pitted rectangular plates under biaxial compression starting from the classic formula for intact rectangular plates and assessing whether it can be applicable to pitted plates, where the degree of pitting corrosion is modelled as one key parameter. Firstly, the numerical model is verified with an existing case study. Afterwards, a series of nonlinear FEM analysis are performed, changing geometrical attributes of both pits and plates, i.e., the radius and location of pits and the slenderness of plates. Based on those simulation results, it is found that the classic formula for intact rectangular plates can be applied reasonably well for pitting corroded plates. A unique parameter DOP (degree of pitting), which is easily determined, is employed to evaluate the effect of pitting corrosion with adequately accuracy and without bias to either longitudinal or transverse compressive stress. The proposed formula can provide guidance during the process of ship structural maintenance decision-making and strength reassessment conveniently.

Original languageEnglish
Title of host publicationProceedings of the 35th International Conference on Ocean, Offshore and Arctic Engineering
Subtitle of host publicationVolume 3: Structures, Safety and Reliability
Place of PublicationNew York, NY, USA
PublisherASME
Number of pages7
Volume3
ISBN (Electronic)978-0-7918-4994-1
DOIs
Publication statusPublished - 2016
EventASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2016 - Busan, Korea, Republic of
Duration: 19 Jun 201624 Jun 2016
Conference number: 35

Publication series

NameASME Conference Proceedings

Conference

ConferenceASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2016
Abbreviated titleOMAE 2016
CountryKorea, Republic of
CityBusan
Period19/06/1624/06/16

Keywords

  • Biaxial compression
  • Nonlinear FEM
  • Pitting corrosion
  • Rectangular plate
  • Residual strength

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