| EPSRC Reference: |
GR/J10785/01 |
| Title: |
THE LOW TEMPERATURE FRACTURE RESISTANCE OF CRACKED COMPONENTS AFTER REPEATED PROOF LOADING |
| Principal Investigator: |
Smith, Professor D |
| Other Investigators: |
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| Department: |
Mechanical Engineering |
| Organisation: |
University of Bristol |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
04 October 1993 |
Ends: |
03 October 1996 |
Value (£): |
140,621
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| EPSRC Research Topic Classifications: |
| Eng. Dynamics & Tribology |
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Summary on Grant Application Form |
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The fracture resistance at lower shelf temperatures is known to be enhanced after a single proof load, while at transition temperatures the fracture response is reduced. Repeated proof loading of pressurised components is often required in industry for a variety of reasons, but the process can be expensive in terms of time and cost. The objectives of this three year project are to determine whether repeated proof loading at upper shelf temperatures of BS 1501-224 C-Mn steel containing cracks further enhances lower shelf fracture resistance and reduces fracture performance at a transition temperature. The project will be in collaboration with The Welding Institute. To meet the objectives a series of experimental and finite element (FE) studies will be carried out. Experiments will consist of tests on unnotched round bars to study the influence of prior deformation on subsequent low temperature behaviour which can also be used as input to the FE analyses. Fracture tests will be carried out on precracked specimens subjected to repeated room temperature proof loading followed by low temperature fracture. The FE studies will simulate the process of repeated proof loading and subsequent response at low temperatures, and provide information on the detailed near crack tip behaviour. A model will be developed to simulate the fracture behaviour and quantify the enhancement or reduction in toughness following repeated proof loading.
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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.bris.ac.uk |