Ultimate strength assessment of steel stiffened plate structures with grooving corrosion damage
Ultimate strength assessment of steel stiffened plate structures with grooving corrosion damage
An approach to simulate the behaviour of steel stiffened plates subjected to weld-induced grooving corrosion using nonlinear finite element modelling is proposed. The model includes the effects of different initial geometric imperfections and weld-induced residual stresses. The influence of corrosion damage on the load shortening curves and ultimate strength is investigated. It is shown that grooving corrosion depth has a greater influence on structural performance as compared with corrosion width for the same volume loss. Such corrosion damage could cause a significant reduction in the ultimate strength of a plate panel. Considerations of weld-induced deflection and residual stresses further enhance the corrosion influence on the strength capacity.
nonlinear finite element analysis, ultimate strength, grooving corrosion, stiffened plate
29-42
Wang, Yikun
2729f2f1-36d7-4daa-8589-b61fcc99a313
Wharton, Julian A.
965a38fd-d2bc-4a19-a08c-2d4e036aa96b
Shenoi, Ajit
a37b4e0a-06f1-425f-966d-71e6fa299960
1 July 2015
Wang, Yikun
2729f2f1-36d7-4daa-8589-b61fcc99a313
Wharton, Julian A.
965a38fd-d2bc-4a19-a08c-2d4e036aa96b
Shenoi, Ajit
a37b4e0a-06f1-425f-966d-71e6fa299960
Wang, Yikun, Wharton, Julian A. and Shenoi, Ajit
(2015)
Ultimate strength assessment of steel stiffened plate structures with grooving corrosion damage.
Engineering Structures, 94, .
(doi:10.1016/j.engstruct.2015.02.028).
Abstract
An approach to simulate the behaviour of steel stiffened plates subjected to weld-induced grooving corrosion using nonlinear finite element modelling is proposed. The model includes the effects of different initial geometric imperfections and weld-induced residual stresses. The influence of corrosion damage on the load shortening curves and ultimate strength is investigated. It is shown that grooving corrosion depth has a greater influence on structural performance as compared with corrosion width for the same volume loss. Such corrosion damage could cause a significant reduction in the ultimate strength of a plate panel. Considerations of weld-induced deflection and residual stresses further enhance the corrosion influence on the strength capacity.
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Submitted date: 29 September 2014
Accepted/In Press date: 23 February 2015
e-pub ahead of print date: 30 March 2015
Published date: 1 July 2015
Keywords:
nonlinear finite element analysis, ultimate strength, grooving corrosion, stiffened plate
Organisations:
nCATS Group, Fluid Structure Interactions Group
Identifiers
Local EPrints ID: 377818
URI: http://eprints.soton.ac.uk/id/eprint/377818
ISSN: 0141-0296
PURE UUID: f9a49b71-b9fa-4f2f-a880-a186434ab6a3
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Date deposited: 22 Jun 2015 13:58
Last modified: 15 Mar 2024 03:47
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Author:
Yikun Wang
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