| EPSRC Reference: |
GR/R26467/01 |
| Title: |
Modelling Damage and Fracture Evolution In Alumina Coatings: Effect of Microstructure |
| Principal Investigator: |
Silberschmidt, Professor V |
| Other Investigators: |
|
| Researcher Co-Investigators: |
|
| Project Partners: |
|
| Department: |
Mechanical Engineering |
| Organisation: |
Loughborough University |
| Scheme: |
Fast Stream |
| Starts: |
01 October 2001 |
Ends: |
30 September 2004 |
Value (£): |
65,000
|
| EPSRC Research Topic Classifications: |
| Eng. Dynamics & Tribology |
Materials testing & eng. |
|
| EPSRC Industrial Sector Classifications: |
| Aerospace, Defence and Marine |
Electronics |
| Healthcare |
Transport Systems and Vehicles |
|
| Related Grants: |
|
| Panel History: |
|
|
Summary on Grant Application Form |
|
The proposed research programme will address the fundamental and applied aspects of damage accumulation and failure evolution in ceramic coatings, widely used in aerospace, automotive and electronic industries. Considerable levels of mechanical and/or thermal loading acting on such components, together with a mismatch of thermomechanical parameters of coatings/substrates can lead to the generation of different failure modes. The latter is determined by a highly non-uniform distribution of material properties in ceramic coatings, linked with their manufacturing and post- manufacturing heat treatment. An adequate account of microstructure in the analysis of the response of ceramics to loading is of crucial importance for design and optimisation of components with ceramic coatings and for a determination of safety conditions in their exploitation. To date, the standard models of continuum mechanics do not account for the microstructure of coatings. The proposed project is aimed at the elaboration of new simulation tools, developed with unification of ideas from continuum damage mechanics, mechanics of fracture and numerical modelling of stochastic processes. Results from experimental analyses (mechanical and structural) of alumina coatings will be used for the elaboration of a model description and its justification. Full-scale numerical simulations with modified finite-element codes and original codes for lattice models will be used to analyse industry- relevant cases and to estimate safety conditions for the utilisation of components with alumina coatings.
|
|
Key Findings |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
|
Potential use in non-academic contexts |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
|
Impacts |
|
| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
|
| Date Materialised |
|
|
|
|
Sectors submitted by the Researcher |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
| Project URL: |
|
| Further Information: |
|
| Organisation Website: |
http://www.lboro.ac.uk |