Techno Press


Steel and Composite Structures   Volume 11, Number 3, June 2011, pages 183-205
DOI: http://dx.doi.org/10.12989/scs.2011.11.3.183
 
An effective proposal for strength evaluation of steelplates randomly corroded on both sidesunder uniaxial compression
Mohammad Reza Khedmati, Zorareh Hadj Mohammad Esmaeil Nouriand Mohammad Mahdi Roshanali

 
Abstract     [Full Text]
    This paper presents the results of an investigation into the post-buckling behaviour and ultimate strength of imperfect corroded steel plates used in ship and other marine-related structures. A series of elastic-plastic large deflection finite element analyses is performed on randomly corroded steel plates. The effects of general corrosion on both sides of the plates are introduced into the finite element models using a random thickness surface model. The effects on plate compressive strength as a result of parametric variation of the corroded surface geometry are evaluated. A proposal on the effective thickness is concluded in order to estimate the ultimate strength and explore the post-buckling behaviour of randomly corroded steel plates under uniaxial compression.
 
Key Words
    steel plate; randomly distributed general corrosion; uniaxial compression; effective thickness
 
Address
Faculty of Marine Technology, Amirkabir University of Technology, Tehran 15914, Iran
 

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