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Assessing the performances of elastic-plastic buckling and shell-solid combination in finite element analysis on plated structures with and without idealised corrosion defects

Assessing the performances of elastic-plastic buckling and shell-solid combination in finite element analysis on plated structures with and without idealised corrosion defects
Assessing the performances of elastic-plastic buckling and shell-solid combination in finite element analysis on plated structures with and without idealised corrosion defects
Ships and offshore structures operate in harsh and corrosive environments and they are subject to high hydrodynamic and inertial loads. Thus it is important to accurately predict the mechanical response of thin-walled marine structures subject to corrosion damage in loaded conditions. This paper present a transition study to investigate in depth the usage of shell and solid elements in nonlinear finite element structural analysis with localised corrosion features. An experimental, stereo full field imaging technique, 3D digital image correlation is used to verify both the shell and solid modelling results. The solid-to-shell coupling techniques were subsequently assessed based on a deck plate model. Models containing a localised section using either the second-order hexahedral element C3D20 or tetrahedral element C3D10I show a similar performance that is compatible with the model using only shell element. The proposed coupling method works well for localised electrochemical or mechanical-electrochemical analysis with subsequent geometrical updates.
0263-8231
17-30
Wang, Yikun
2729f2f1-36d7-4daa-8589-b61fcc99a313
Downes, Jonathan
ebc0f09b-9d33-4815-bedf-bc77df59c822
Wharton, Julian
965a38fd-d2bc-4a19-a08c-2d4e036aa96b
Shenoi, Ramanand
a37b4e0a-06f1-425f-966d-71e6fa299960
Wang, Yikun
2729f2f1-36d7-4daa-8589-b61fcc99a313
Downes, Jonathan
ebc0f09b-9d33-4815-bedf-bc77df59c822
Wharton, Julian
965a38fd-d2bc-4a19-a08c-2d4e036aa96b
Shenoi, Ramanand
a37b4e0a-06f1-425f-966d-71e6fa299960

Wang, Yikun, Downes, Jonathan, Wharton, Julian and Shenoi, Ramanand (2018) Assessing the performances of elastic-plastic buckling and shell-solid combination in finite element analysis on plated structures with and without idealised corrosion defects. Thin-Walled Structures, 127, 17-30. (doi:10.1016/j.tws.2018.01.030).

Record type: Article

Abstract

Ships and offshore structures operate in harsh and corrosive environments and they are subject to high hydrodynamic and inertial loads. Thus it is important to accurately predict the mechanical response of thin-walled marine structures subject to corrosion damage in loaded conditions. This paper present a transition study to investigate in depth the usage of shell and solid elements in nonlinear finite element structural analysis with localised corrosion features. An experimental, stereo full field imaging technique, 3D digital image correlation is used to verify both the shell and solid modelling results. The solid-to-shell coupling techniques were subsequently assessed based on a deck plate model. Models containing a localised section using either the second-order hexahedral element C3D20 or tetrahedral element C3D10I show a similar performance that is compatible with the model using only shell element. The proposed coupling method works well for localised electrochemical or mechanical-electrochemical analysis with subsequent geometrical updates.

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TWST_2017_727_Revision 2_V0_accepted - Accepted Manuscript
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Accepted/In Press date: 24 January 2018
e-pub ahead of print date: 3 February 2018
Published date: June 2018

Identifiers

Local EPrints ID: 417363
URI: http://eprints.soton.ac.uk/id/eprint/417363
ISSN: 0263-8231
PURE UUID: e19734df-6d1e-41fa-9a40-45d0edcb760c
ORCID for Yikun Wang: ORCID iD orcid.org/0000-0001-5619-7795
ORCID for Jonathan Downes: ORCID iD orcid.org/0000-0003-2027-4474
ORCID for Julian Wharton: ORCID iD orcid.org/0000-0002-3439-017X

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Date deposited: 30 Jan 2018 17:30
Last modified: 17 Dec 2019 05:38

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Contributors

Author: Yikun Wang ORCID iD
Author: Jonathan Downes ORCID iD
Author: Julian Wharton ORCID iD
Author: Ramanand Shenoi

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