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Projects: Projects for Investigator
Reference Number EP/J017574/1
Title A combined peridynamics and FE modelling approach to nuclear power plant materials
Status Completed
Energy Categories Nuclear Fission and Fusion(Nuclear Fission, Fuel cycle) 100%;
Research Types Basic and strategic applied research 50%;
Applied Research and Development 50%;
Science and Technology Fields PHYSICAL SCIENCES AND MATHEMATICS (Metallurgy and Materials) 100%
UKERC Cross Cutting Characterisation Not Cross-cutting 100%
Principal Investigator Dr M R Wenman
No email address given
Imperial College London
Award Type Standard
Funding Source EPSRC
Start Date 25 February 2013
End Date 24 August 2014
Duration 18 months
Total Grant Value £92,378
Industrial Sectors Energy
Region London
Programme Energy : Engineering
Investigators Principal Investigator Dr M R Wenman , Materials, Imperial College London (100.000%)
  Industrial Collaborator Project Contact , EDF Energy (0.000%)
Web Site
Abstract The UK government made it clear in a recent white paper of 2008 that nuclear energy was a vital part of the UKs energy mix to ensure both security of supply and a commitment to reduction in CO2 emissions. The recent Office of Nuclear Regulation Weightman report on the Fukushima accident has confirmed that Fukushima showed no reason to curtail nuclear operation or nuclear new build in the UK and in 2012 it is expected that EDF will start work on the first new nuclear power station at Hinkley Point. Perhaps one key issue/lesson learnt from the Fukushima accident, especially in Japan, was the need for continued research into nuclear safety to support existing and new build nuclear power plant programmes. Until recently there has been relatively little UK research into nuclear power and as such there are also relatively few young academics truly in the field. There is also a growing need to train new young talented engineers and physicists in nuclear engineering disciplines if the new build programme is to be successful and to help rebuild the UKs reputation as a world leader in this field.This proposal is made to try to address some of these issues and at the same time explore a new growing area of modelling, known as peridynamics, with great potential for modelling many problems within the nuclear engineering materials area.The project aims to investigate two nuclear fuel problems thus far difficult to model: pellet-cladding interactions (PCI) in nuclear fuels and oxide phase change/spallation on zirconium alloy cladding of water-cooled reactors. These problems are ideal for a mixed finite element (FE) -peridynamics modelling approach.Both PCI and oxide growth and spallation require a model that is able to deal with a ductile material (cladding) bonded to a brittle material (UO2 ceramic fuel) under complex stress states, geometries and incorporating heat transfer and material heterogeneity. The peridynamics approach is able to model material with defects without some of the numerical issues inherent within the FE approach. However, combining the two modelling techniques can bring the advantages of both techniques together.This project will develop a peridynamics implementation into the finite element code Abaqus. The models will then be developed further to model the specific problems of PCI and oxide spallation problems described. The project will also develop a new young post doctoral researcher and a early career academic in the field of nuclear fuel modelling
Publications (none)
Final Report (none)
Added to Database 19/09/12