Projects
Projects: Projects for Investigator |
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| Reference Number | EP/I021027/1 | |
| Title | NEW METHODS FOR ULTRASONIC NDE OF DIFFICULT MATERIALS | |
| Status | Completed | |
| Energy Categories | Nuclear Fission and Fusion(Nuclear Fission, Other nuclear fission) 5%; Not Energy Related 90%; Other Power and Storage Technologies(Electric power conversion) 5%; |
|
| Research Types | Basic and strategic applied research 100% | |
| Science and Technology Fields | PHYSICAL SCIENCES AND MATHEMATICS (Physics) 50%; PHYSICAL SCIENCES AND MATHEMATICS (Metallurgy and Materials) 50%; |
|
| UKERC Cross Cutting Characterisation | Not Cross-cutting 100% | |
| Principal Investigator |
Professor P Withers No email address given Materials University of Manchester |
|
| Award Type | Standard | |
| Funding Source | EPSRC | |
| Start Date | 01 February 2011 | |
| End Date | 31 January 2014 | |
| Duration | 36 months | |
| Total Grant Value | £45,945 | |
| Industrial Sectors | No relevance to Underpinning Sectors; Transport Systems and Vehicles | |
| Region | North West | |
| Programme | Materials, Mechanical and Medical Engineering | |
| Investigators | Principal Investigator | Professor P Withers , Materials, University of Manchester (100.000%) |
| Web Site | ||
| Objectives | Linked to grant EP/I019731/1 | |
| Abstract | In many engineering applications, materials that exhibit heterogeneous or otherwise acoustically scattering microstructure are employed, examples include austenitic steels and alloys, concrete and fibre reinforced composites. In ultrasonic non destructive evaluation (NDE) of such highly scattering media, the defect target signal is frequently obscured by clutter echoes, caused by numerous, relatively small (relative to the ultrasonic wavelengths), stationary reflectors, which form part of the internal microstructure of the material. The extent of this clutter can be significant and even defects that are larger than these randomly scattering regions can be difficult to detect. This type of time-invariant clutter noise cannot be reduced by the standard time averaging or correlation techniques that are used to reduce time varying random electrical noise. Accordingly, defect identification invariably involves a compromise between achievable resolution, which is determined partly by wavelength in the material, and the noise arising from scattering in the propagation medium. This project will investigate a range of methods for improved ultrasonic NDE of difficult materials. The approach will involve a combination of ultrasonic beam modelling, novel transducer design and array signal processing methods | |
| Publications | (none) |
|
| Final Report | (none) |
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| Added to Database | 07/12/10 | |
