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A rapid method for reliability analysis of composite tophat stiffened structures using a first principles method and design rules

A rapid method for reliability analysis of composite tophat stiffened structures using a first principles method and design rules
A rapid method for reliability analysis of composite tophat stiffened structures using a first principles method and design rules
Composite materials are increasingly being used within engineering, especially in low weight applications. A significant drawback that these materials exhibit is their variability. There is a growing trend towards stochastic analysis of marine structures and this is even more important for scenarios that have a high variability. To implement these new techniques it is important to be able to, rapidly and accurately, determine reliability during the design phase. Therefore, a reliability analysis, utilising a rapid implementation, has been performed on plates that have been designed using two different sets of design rules and a first principles method. The results show that whilst, under the limits investigated, the reliability of the design rules are slightly safer than those found using first principles; the sensitivity analysis shows that each of the design rules generates a different reaction from each variable, encouraging different types of structures through their idiosyncrasies. Furthermore the method shown allows a rapid analysis to be performed on complex composite structures in a relatively short time frame using either first principles methods or design rules.
1479-8751
1-28
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
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

Sobey, A.J., Blake, J.I.R and Shenoi, R.A. (2014) A rapid method for reliability analysis of composite tophat stiffened structures using a first principles method and design rules. Transactions of The Royal Institution of Naval Architects Part A: International Journal of Maritime Engineering, 156, 1-28. (doi:10.3940/rina.ijme.2014.a1.278).

Record type: Article

Abstract

Composite materials are increasingly being used within engineering, especially in low weight applications. A significant drawback that these materials exhibit is their variability. There is a growing trend towards stochastic analysis of marine structures and this is even more important for scenarios that have a high variability. To implement these new techniques it is important to be able to, rapidly and accurately, determine reliability during the design phase. Therefore, a reliability analysis, utilising a rapid implementation, has been performed on plates that have been designed using two different sets of design rules and a first principles method. The results show that whilst, under the limits investigated, the reliability of the design rules are slightly safer than those found using first principles; the sensitivity analysis shows that each of the design rules generates a different reaction from each variable, encouraging different types of structures through their idiosyncrasies. Furthermore the method shown allows a rapid analysis to be performed on complex composite structures in a relatively short time frame using either first principles methods or design rules.

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e-pub ahead of print date: January 2014
Published date: January 2014
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 360287
URI: http://eprints.soton.ac.uk/id/eprint/360287
ISSN: 1479-8751
PURE UUID: f7834b30-d569-4ff7-86b0-da93b64127bb
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

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Date deposited: 04 Dec 2013 16:31
Last modified: 18 Feb 2021 17:09

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Contributors

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

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