| EPSRC Reference: |
GR/L36178/01 |
| Title: |
THE ROLE OF SURFACE DEFECTS IN ROLLING CONTACT FATIGUE |
| Principal Investigator: |
Dwyer-Joyce, Professor RS |
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| Department: |
Mechanical Engineering |
| Organisation: |
University of Sheffield |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
28 July 1997 |
Ends: |
27 July 2000 |
Value (£): |
132,499
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| EPSRC Research Topic Classifications: |
| Eng. Dynamics & Tribology |
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Summary on Grant Application Form |
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Defects on the surfaces of contacting machine elements can act as stress raisers and lead to contact fatigue. The objective of this study is to model this stress raising effect in elastic and elastic/plastic contacts.Both elastic shakedown and repeated elastic-plastic finite element analysis will be used to model the behaviour of surfaces containing idealised defects. The associated stress fields will be interpreted using a fatigue crack initiation model (based on both a ductility exhaustion and a maximum stress approach). This will be used to develop criteria for defect severity.This problem of surface initiated fatigue is of importance in the wheel/rail industry. The project collaborators, British Steel Track Products (BSTP) will be carrying out a survey of rail defects, and provide specimens, as part of this study. It is intended to develop criteria for defect severity and hence define a link between rail manufacturing processes and product durability.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.shef.ac.uk |