Dislocation based modelling of engineering alloys
Lead Research Organisation:
University of Oxford
Abstract
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Organisations
People |
ORCID iD |
Publications
Bromage B
(2018)
Calculating dislocation displacements on the surface of a volume
in Modelling and Simulation in Materials Science and Engineering
Studentship Projects
| Project Reference | Relationship | Related To | Start | End | Student Name |
|---|---|---|---|---|---|
| EP/N509711/1 | 30/09/2016 | 29/09/2021 | |||
| 1802042 | Studentship | EP/N509711/1 | 30/09/2016 | 03/08/2020 |
| Description | Development of an improved discrete dislocation dynamics based code that can consistently predict the plastic behaviour of single crystal materials. Results demonstrating the efficacy of the code still pending. |
| Exploitation Route | The code has been designed so that it may be used as a foundation for creating simulations of more complicated materials. With further improvements, it should be possible to simulate multi-crystal microstructures, include precipitates and have a reasonably complex geometry of the test specimen being modelled. Further work could improve understanding of how dislocations behave and help design new materials and components for specific purposes. |
| Sectors | Aerospace, Defence and Marine,Construction,Energy,Manufacturing, including Industrial Biotechology |
| Title | Improved Dislocation Remeshing Algorithm |
| Description | Improves the remeshing of dislocation network structures for handling more complicated geometries |
| Type Of Material | Computer model/algorithm |
| Year Produced | 2019 |
| Provided To Others? | No |
| Impact | Allows for the simulation of more complicated stress states in a model without creating a non-physical resultant dislocation structure |
| Title | Improved Mobility Law |
| Description | And improved code for the simulation of dislocation motion in body centred cubic materials |
| Type Of Material | Computer model/algorithm |
| Year Produced | 2020 |
| Provided To Others? | No |
| Impact | Allows for more accurate prediction of dislocation behaviour while requiring less real time to simulate. |
| Title | Improved Time Integrator |
| Description | Improves the time step selection protocol used to allow for more efficient simulations |
| Type Of Material | Computer model/algorithm |
| Year Produced | 2019 |
| Provided To Others? | No |
| Impact | Causes simulations to take less real time to run to completion |
| Title | Surface Displacement Boundary Condition Calculator |
| Description | Calculates the displacements on the surface of a finite volume due to the movement of dislocations within the volume for use in finite element boundary conditions |
| Type Of Material | Computer model/algorithm |
| Year Produced | 2018 |
| Provided To Others? | No |
| Impact | Allows for more accurate modelling of plastic behaviour in single crystals using discrete dislocation dynamics |