Micromechanical Modelling and Experimentation
Lead Research Organisation:
University of Oxford
Department Name: Engineering Science
Abstract
The greatest challenges that face mankind today centre on sustainability of the energy supply. It is important to develop reliable sources of energy that that have minimal impact on the environment. Also, it is important for our transport system, particularly aerospace, to make the most efficent use of energy resources. The economic challenge lies in the development of reliable and efficient generation systems based on the available sources of energy. In practice this means nuclear power, and, in the longer term, fusion. The demand this places on materials engineering research is to supply solutions for high temperature materials that would underpin improved large scale designs for systems and plant. Siimilarly, the requirement to reduce emmissions and increase efficiency in aerospace, means that material systems will need to be developed that can deliver the required performance at much higher temperatures than at present.In order to solve these problems, it will be important to develop a more in-depth understanding of material behaviour under loading and environmental conditions that are representative of those that will be experinced in practice. In this project, a fully integrated approach to modelling and experimentation will be developed, which will explore the material behaviour across a range of different scales. The new insight developed from these studies will allow us to develop improved physically based models that can be used in an industrial envionment. Strong partnerships with industry will be important in achieving this goal.In order to achieve our research objectives we must also sustain and further develop the expertise of the research base that is required to tackle these demanding scientific and technological challenges. A major objective of this grant will be to create the infrastructure for the long term sustainability of expertise that will be required to meet these challenges. This will involve the development of partnerships with other leading international academic groups.
Publications
Wilkinson A
(2012)
Strains, planes, and EBSD in materials science
in Materials Today
Tsou N
(2013)
Evolution of compatible laminate domain structures in ferroelectric single crystals
in Acta Materialia
Tarleton E
(2015)
A discrete dislocation plasticity study of the micro-cantilever size effect
in Acta Materialia
Style RW
(2011)
Ice-lens formation and geometrical supercooling in soils and other colloidal materials.
in Physical review. E, Statistical, nonlinear, and soft matter physics
Style R
(2011)
Mud peeling and horizontal crack formation in drying clays MUD PEELING IN DRYING CLAYS
in Journal of Geophysical Research: Earth Surface
Stratulat A
(2016)
Micro-mechanical measurement of fracture behaviour of individual grain boundaries in Ni alloy 600 exposed to a pressurized water reactor environment
in Corrosion Science
Ponter A
(2013)
Thermal ratchetting of polycrystalline metals with inhomogeneous thermal properties
in Philosophical Magazine
Maitland A
(2012)
A 'Simple' Method for In-Situ Observation of Crack Mechanisms in Ceramic Materials in the Environmental Scanning Electron Microscope
in Micro and Nanosystemse
Li F
(2012)
A new numerical scheme for computer simulation of multiple cracking in ceramic films during constrained sintering
in Modelling and Simulation in Materials Science and Engineering
Li F
(2010)
Predicting sintering deformation of ceramic film constrained by rigid substrate using anisotropic constitutive law
in Acta Materialia
Description | This grant led to the development of a range of experimental and modelling techniqus that underpinned future research awards, including three EPSRC Programme grants. The award led to the integration of experimental, theoretical and computational approaches to the development of micromechanical models of material behaviour for a wide range of different materials - eg Ti alloys used in the aerospace inductry, thermal barrier coatings, ferroelectric behaviour, the embrittlement of Ni based alloys and steels etc. |
Exploitation Route | As noted in the impact section, the research jhas been used to provide new insights in material behaviour that have been exploited in the aerospace, power generation and manufacturing industries. |
Sectors | Aerospace, Defence and Marine,Energy,Manufacturing, including Industrial Biotechology |
Description | The research conducted in this grant provided the fundamental understanding and computational tools that were subsequently used in industriallly funded projects withinin the power generation, aerospace and steel manufacturing industries to provide new insights into damage devlopment and residual stress states in engineering components. |
First Year Of Impact | 2012 |
Sector | Aerospace, Defence and Marine,Energy,Manufacturing, including Industrial Biotechology |
Impact Types | Economic |
Description | Creep Constitutive Modelling of 316 stainless Steel |
Amount | £109,000 (GBP) |
Organisation | EDF Energy |
Sector | Private |
Country | United Kingdom |
Start | 01/2010 |
End | 06/2014 |
Description | Creep Constitutive Modelling of 316 stainless Steel |
Amount | £109,000 (GBP) |
Organisation | EDF Energy |
Sector | Private |
Country | United Kingdom |
Start | 10/2010 |
End | 06/2014 |
Description | DMW-Creep: Influence of Inhomogeneity on Creep of Dissimilar Metal Welds |
Amount | £737,970 (GBP) |
Funding ID | EP/K007866/1 |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 04/2013 |
End | 03/2017 |
Description | Development of Microsimulation model for predicting the number density of creep voids in steel welds |
Amount | £240,000 (GBP) |
Organisation | Mitsubishi Heavy Industries |
Sector | Private |
Country | Japan |
Start | 02/2012 |
End | 04/2014 |
Description | Development of Microsimulation model for predicting the number density of creep voids in steel welds |
Amount | £240,000 (GBP) |
Organisation | Mitsubishi Heavy Industries |
Sector | Private |
Country | Japan |
Start | 02/2012 |
End | 06/2013 |
Description | MAST: Modelling of advanced materials for simulation of transformative manufacturing processes |
Amount | £678,358 (GBP) |
Funding ID | EP/K028316/1 |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 12/2014 |
End | 12/2017 |
Description | Micro-mechanical crystal plasticity of diffusion-bonded Ti structures |
Amount | £70,120 (GBP) |
Organisation | Rolls Royce Group Plc |
Sector | Private |
Country | United Kingdom |
Start | 04/2011 |
End | 04/2014 |
Description | Micro-mechanical crystal plasticity of diffusion-bonded Ti structures |
Amount | £70,120 (GBP) |
Organisation | Rolls Royce Group Plc |
Sector | Private |
Country | United Kingdom |
Start | 11/2011 |
End | 09/2014 |
Description | Micro-mechanical modelling techniques for forming texture, non-proportionality and failure in auto materials |
Amount | £480,164 (GBP) |
Funding ID | EP/I021043/1 |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 09/2011 |
End | 09/2015 |
Description | Residual stresses in welds |
Amount | £15,000 (GBP) |
Organisation | POSCO - South Korea |
Sector | Private |
Country | Korea, Republic of |
Start | 01/2012 |
End | 12/2012 |
Description | Residual stresses in welds |
Amount | £15,000 (GBP) |
Organisation | POSCO - South Korea |
Sector | Private |
Country | Korea, Republic of |
Start | 01/2012 |
End | 12/2012 |
Description | Transferability of small-specimen data to large-scale component fracture assessment |
Amount | £524,396 (GBP) |
Funding ID | EP/K007815/1 |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 04/2013 |
End | 03/2015 |