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Ultimate collapse strength assessment of damaged steel plated grillages

Ultimate collapse strength assessment of damaged steel plated grillages
Ultimate collapse strength assessment of damaged steel plated grillages
Across many industries damage events leading to a breach in structural integrity continue to occur. An area where this can lead to particularly unsafe conditions is in the maritime environment, where it may be difficult to rescue crew and cargo. In order to improve structural safety through design for the survivability or to assess the residual strength of a damaged vessel in an emergency response or salvage scenario, it is critical to understand the influence of the damage. This paper investigates the use of FEA on ultimate collapse strength of damaged steel grillages and the influence of the damage aperture on the developing failure modes within the structure. The study finds that the presence of damage, in the form of a hole, can lead to the failure mode changing as damage aperture size is increased leading to significant changes to the ultimate collapse strength of the structure. It concludes that to assess the damaged strength of steel plated structures, it is critical that modelling methods are able to capture and account for such mode changes in order to accurately assess the true residual strength of the structure.
ultimate collapse strength, steel-plated grillages, damaged strength, residual strength, FEA, progressive collapse
0141-0296
517-535
Underwood, J.M.
33c3f872-a086-40b1-89ec-a5dd39c32418
Sobey, A.J.
e850606f-aa79-4c99-8682-2cfffda3cd28
Blake, J.I.R
6afa420d-0936-4acc-861b-36885406c891
Shenoi, R.A.
a37b4e0a-06f1-425f-966d-71e6fa299960
Underwood, J.M.
33c3f872-a086-40b1-89ec-a5dd39c32418
Sobey, A.J.
e850606f-aa79-4c99-8682-2cfffda3cd28
Blake, J.I.R
6afa420d-0936-4acc-861b-36885406c891
Shenoi, R.A.
a37b4e0a-06f1-425f-966d-71e6fa299960

Underwood, J.M., Sobey, A.J., Blake, J.I.R and Shenoi, R.A. (2015) Ultimate collapse strength assessment of damaged steel plated grillages. Engineering Structures, 99, 517-535. (doi:10.1016/j.engstruct.2015.05.016).

Record type: Article

Abstract

Across many industries damage events leading to a breach in structural integrity continue to occur. An area where this can lead to particularly unsafe conditions is in the maritime environment, where it may be difficult to rescue crew and cargo. In order to improve structural safety through design for the survivability or to assess the residual strength of a damaged vessel in an emergency response or salvage scenario, it is critical to understand the influence of the damage. This paper investigates the use of FEA on ultimate collapse strength of damaged steel grillages and the influence of the damage aperture on the developing failure modes within the structure. The study finds that the presence of damage, in the form of a hole, can lead to the failure mode changing as damage aperture size is increased leading to significant changes to the ultimate collapse strength of the structure. It concludes that to assess the damaged strength of steel plated structures, it is critical that modelling methods are able to capture and account for such mode changes in order to accurately assess the true residual strength of the structure.

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Ultimate Collapse Strength Assessment of Damaged Steel Plated Grillages Final.pdf - Accepted Manuscript
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More information

Accepted/In Press date: 11 May 2015
e-pub ahead of print date: 5 June 2015
Published date: 15 September 2015
Keywords: ultimate collapse strength, steel-plated grillages, damaged strength, residual strength, FEA, progressive collapse
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 377845
URI: http://eprints.soton.ac.uk/id/eprint/377845
ISSN: 0141-0296
PURE UUID: f2d91f34-212a-45e3-8770-8f201448b2ca
ORCID for A.J. Sobey: ORCID iD orcid.org/0000-0001-6880-8338
ORCID for J.I.R Blake: ORCID iD orcid.org/0000-0001-5291-8233

Catalogue record

Date deposited: 23 Jun 2015 15:56
Last modified: 18 Feb 2021 17:09

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Contributors

Author: J.M. Underwood
Author: A.J. Sobey ORCID iD
Author: J.I.R Blake ORCID iD
Author: R.A. Shenoi

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