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23 May, 2013
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EngD-18 Ship structural integrity - Lloyd's Register
Institution:
University of Southampton
Dept/School/Faculty:
Engineering & The Environment
PhD Supervisor:
Prof J Barton
Co-Supervisor:
Prof I. Sinclair
Application Deadline:
17 June 2013
Funding Availability:
Funded PhD Project (European/UK Students Only)
This research project has funding attached. Funding for this project is available to citizens of a number of European countries (including the UK). In most cases this will include all EU nationals. However full funding may not be available to all applicants and you should read the full department and project details for further information.
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PhD Research Project
Ships are growing bigger in size. Operational demands impose high levels of structural loadings. Operational economics dictate that the payload to structural weight ratio should be high leading to requirements of weight minimisation. Thus this coupled action of higher loads and lighter, thinner structures leads to structures being subjected to higher stresses for larger portions of their operational lives. This has implications on the initiation of defects such as cracks in ship structures and their subsequent propagation. Ship owners and ship safety regulators have an obligation to examine ships for cracks and prescribe remedial action. The current philosophy is to accept no defects or cracks; that is, if a ship surveyor detects a crack then the instruction is to repair and rectify that defect regardless of its location and significance (potentially consuming resources and energy unnecessarily). There is a need to examine this philosophy in a fundamental manner and create a safe-ship approach based on rational examination of defects and their implications on ship structural integrity.
This project focuses on the role of fracture mechanics to underpin assessment of ship structural integrity. Numerical (FEA, BEA, meshless) methods will be developed and applied to assess critical strain energy release rates for stiffened plate structures with possible multiple cracks, perhaps using non-linear J-integral or equivalent approaches to account for plasticity. It is envisaged that parallel experimental modelling aided full field strain and stress measurements from different TSA, DIC and other techniques will help in both validating the numerical models as well as providing physical understanding of the fracture toughness characteristics of plated structures.
This project will be aligned with that sponsored by TWI.
Start date: as soon as possible
Funding Notes:
This EngD project is being funded through Lloyd's Register sponsorship.
To be eligible students need to have UK status or be a European Union (EU)* national who has been 'ordinarily resident' in the UK for three years prior to the commencement of studies.
Research Assessment Exercise (RAE) 2008 Results
Unit of Assessment:
Mechanical, Aeronautical and Manufacturing Engineering
What is the RAE?
FTE Category A Staff Submitted
4*
3*
2*
1*
U/C
132.49
15%
45%
35%
5%
0%
PJ038040-001427
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Institution Location
50.93403800
-1.39630700
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