| EPSRC Reference: |
GR/L87330/01 |
| Title: |
VISUALISATION OF THE DEVELOPMENT OF DAMAGE IN COMPOSITES UNDER FATIGUE CONDITIONS |
| Principal Investigator: |
Almond, Professor D |
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| Department: |
Engineering & Applied Science |
| Organisation: |
University of Bath |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 April 1998 |
Ends: |
31 March 2001 |
Value (£): |
196,359
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| EPSRC Research Topic Classifications: |
| Design Engineering |
Eng. Dynamics & Tribology |
| Instrumentation Eng. & Dev. |
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Summary on Grant Application Form |
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Conventional ultrasonic c-scanning provides an accurate indication of impact damage in a composite sample. There has been sucess in using c-scanning to monitor damage growth during fatigue by interrupting a test and removing the sample to re-image the defect. However this is an unsatisfactory procedure because of the uncertainty about the appropriate time to interrupt a fatigue programme caused by the broad spread in fatigue lives that is typical of composites. A completely new ultrasonic imaging technique, acoustography, offers the possibilty of monitoring damage growth continuously throughout a fatigue test. It emloyes an ultrasound sensitive liquid crystal material that enables large areas to be imaged instanateously and continuously. This proposal is to develop the acoustography technique to monitor the growth of imact damage and the extension if the deliberateyly introduced manufacturing defects in test peices mounted on a mechanical testing machine and to ues the technique to determine the conditions for impact damage growth in composite samples of interest to, and provided by BAe Airbus Ltd and GKN Westland Helicopters Ltd. The results of this programme would be used by the industrial collaborators to improve design procedures by giving designers confidence in specifying zero-growth conditions for defects and damage in structures.
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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.bath.ac.uk |