New Dimensions of Engineering Science at Large Facilities
Lead Research Organisation:
University of Oxford
Department Name: Engineering Science
Abstract
The knowledge of multi-component, spatially varying stress and strain states and structural information is crucial for elucidating advanced concepts and models in materials science and strength engineering. Recent developments in neutron and high energy X-ray diffraction techniques at large scientific facilities have pushed the spatial resolution towards ever smaller length scales, at the same time improving data acquisition rates, making it possible to obtain large collections of diffraction patterns. However, because of the limitations imposed by gauge volume geometry and grain structure of the object the desired information is often contained within these data sets in implicit form, e.g. as convolutions or averages. Recently it has been demonstrated that robust inverse problem formulations akin to tomographic reconstruction methods can successfully be used to de-convolve detailed, spatially resolved information about material structure, texture and deformation. The present project will develop systematic approaches to the treatment of redundant high energy X-ray and neutron diffraction data sets for the purpose of extracting time-dependant, three-dimensional, multi-component maps of strain, texture and damage. X-ray diffraction experiments will be conducted on the JEEP beamline at Diamond, beamline ID15A at the ESRF, and neutron transmission data will be obtained on the ENGIN-X instrument at ISIS. The results will establish foundations for future methodologies for multi-dimensional analysis (3D and time-resolved) of strain, texture and structure of advanced engineering materials and components.
Publications
Sui T.
(2013)
Mechanisms of failure in porcelain-veneered sintered zirconia restorations
in 13th International Conference on Fracture 2013, ICF 2013
Sui T.
(2013)
Multi-scale modeling and diffraction-based characterization of elastic behaviour of human enamel
in 13th International Conference on Fracture 2013, ICF 2013
Sheng Y
(2017)
Photoluminescence Segmentation within Individual Hexagonal Monolayer Tungsten Disulfide Domains Grown by Chemical Vapor Deposition.
in ACS applied materials & interfaces
Sui T
(2013)
Multiscale modelling and diffraction-based characterization of elastic behaviour of human dentine.
in Acta biomaterialia
Korsunsky A
(2011)
Strain tomography of polycrystalline zirconia dental prostheses by synchrotron X-ray diffraction
in Acta Materialia
Mostafavi M
(2013)
Three-dimensional crack observation, quantification and simulation in a quasi-brittle material
in Acta Materialia
Lunt A
(2014)
Intragranular Residual Stress Evaluation Using the Semi-Destructive FIB-DIC Ring-Core Drilling Method
in Advanced Materials Research
Xie M.
(2013)
Numerical simulation and experimental validation of texture in extruded wires of a BCC metal
in Computational Plasticity XII: Fundamentals and Applications - Proceedings of the 12th International Conference on Computational Plasticity - Fundamentals and Applications, COMPLAS 2013
Salvati E
(2017)
Eigenstrain reconstruction of residual strains in an additively manufactured and shot peened nickel superalloy compressor blade
in Computer Methods in Applied Mechanics and Engineering
Lunt A
(2017)
Characterisation of nanovoiding in dental porcelain using small angle neutron scattering and transmission electron microscopy.
in Dental materials : official publication of the Academy of Dental Materials
Belnoue J
(2012)
A damage function formulation for nonlocal coupled damage-plasticity model of ductile metal alloys
in European Journal of Mechanics - A/Solids
Uzun F
(2019)
On the application of principles of artificial intelligence for eigenstrain reconstruction of volumetric residual stresses in non-uniform Inconel alloy 740H weldments
in Finite Elements in Analysis and Design
Nguyen G
(2012)
How to connect two scales of behaviour in constitutive modelling of geomaterials
in Géotechnique Letters
BAIMPAS N
(2014)
RICH TOMOGRAPHY TECHNIQUES FOR THE ANALYSIS OF MICROSTRUCTURE AND DEFORMATION
in International Journal of Computational Methods
Korsunsky A
(2012)
Analysis of the internal structure and lattice (mis)orientation in individual grains of deformed CP nickel polycrystals by synchrotron X-ray micro-diffraction and microscopy
in International Journal of Fatigue
Song X
(2012)
An eigenstrain-based finite element model and the evolution of shot peening residual stresses during fatigue of GW103 magnesium alloy
in International Journal of Fatigue
Song X
(2014)
Residual stresses and microstructure in Powder Bed Direct Laser Deposition (PB DLD) samples
in International Journal of Material Forming
Hofmann F
(2012)
Imaging of grain-level orientation and strain in thicker metallic polycrystals by high energy transmission micro-beam Laue (HETL) diffraction techniques
in International Journal of Materials Research
Abbey B
(2012)
Neutron strain tomography using Bragg-edge transmission
in International Journal of Materials Research
Kirkwood H
(2017)
High resolution imaging and analysis of residual elastic strain in an additively manufactured turbine blade
in International Journal of Nanotechnology
Liu W
(2013)
Grain refinement and fatigue strengthening mechanisms in as-extruded Mg-6Zn-0.5Zr and Mg-10Gd-3Y-0.5Zr magnesium alloys by shot peening
in International Journal of Plasticity
Salvati E
(2017)
An analysis of macro- and micro-scale residual stresses of Type I, II and III using FIB-DIC micro-ring-core milling and crystal plasticity FE modelling
in International Journal of Plasticity
Constantinescu A
(2013)
Symbolic and numerical solution of the axisymmetric indentation problem for a multilayered elastic coating
in International Journal of Solids and Structures
Description | A host of new approaches developed allows "rich" tomography characterisation of structural and functional materials and components. We are able to map strain, grain orientation, damage etc. in 3D using neutron and synchrotron X-ray beams. |
Exploitation Route | Failure analysis, microstructure analysis, strength analysis, product optimisation New generation of non-destructive materials characterisation tools |
Sectors | Aerospace, Defence and Marine,Agriculture, Food and Drink,Chemicals,Construction,Education,Electronics,Energy,Environment,Manufacturing, including Industrial Biotechology,Pharmaceuticals and Medical Biotechnology |
URL | http://www.korsunsky.org |
Description | The far-reaching impact of this research concerns 3D imaging in the widest sense: stress-strain, phase, grain orientation, etc. This kind of insight is in demand right across the range of technologies, cultural context, forensics, etc. |
Sector | Aerospace, Defence and Marine,Agriculture, Food and Drink,Chemicals,Construction,Creative Economy,Education,Electronics,Energy,Environment,Healthcare,Government, Democracy and Justice,Manufacturing, including Industrial Biotechology,Pharmaceuticals and Medical Biotechnology,Transport |
Impact Types | Societal,Economic |
Description | DLS |
Organisation | Diamond Light Source |
Country | United Kingdom |
Sector | Private |
PI Contribution | We provide scientific leadership, ideas for tests, expertise and manpower for running complex experiments. |
Collaborator Contribution | Access to unique world class synchrotron beam lines. |
Impact | Multi-disciplinary - engineering, physics, chemistry; use of X-ray scattering, spectroscopy, imaging |
Description | Specialist Dental Group, Singapore |
Organisation | Specialist Dental Group |
Country | Singapore |
Sector | Hospitals |
PI Contribution | Presentations were made by AMK (PI) at events and meetings in Singapore during which the details of the insights into caries processes obtained in the course of the project were presented. |
Collaborator Contribution | During mutual visits of TKN to UK, and AMK (PI) to Singapore; joint preparation of publications was undertaken, as well as exchange of knowledge and expertise. In particular, advice was received from NTK on caries therapy procedures in Singapore. |
Impact | Publications as found in the literature, preparation of patent applications |
Start Year | 2010 |