| EPSRC Reference: |
GR/R86270/01 |
| Title: |
Tensor Tomograpghy for 3D Photoelasticity |
| Principal Investigator: |
Tomlinson, Dr RA |
| Other Investigators: |
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| Department: |
Mechanical Engineering |
| Organisation: |
University of Sheffield |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 November 2002 |
Ends: |
30 April 2006 |
Value (£): |
118,651
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| EPSRC Research Topic Classifications: |
| Instrumentation Eng. & Dev. |
Numerical Analysis |
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Summary on Grant Application Form |
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A sensor and methodology using phase stepping have been developed for the rapid collection of full-field characteristic parameters from multiple views to be applied to tomographic photoelasticity. As tensor tomography is mathematically non-trivial, no attempt has been made to obtain experimentally the full-field reconstructed stress field for the general three-dimensional case.A new collaboration is proposed between Experimental Mechanics (Sheffield), Computer Science (Sheffield), and Mathematics (UMIST) to investigate novel methods of tomographic reconstruction of stress fields in photoelastic models and the experimental implementation of these methods in an industrial context. Algorithms will be developed for the efficient solution of the forward and inverse problems. The solution of the inverse problem will incorporate prior smoothness known from the linear elasticity equations. Light sources and the size of rotation increments will be investigated and the phase-stepping system automated. The data collection system and the new reconstruction methodology will be integrated and tested on models of real engineering components. The outcome of the proposed research will be a rapid, non-destructive, full-field computational/experimental method for the assessment of three-dimensional stress fields. The proposal will contribute to the foresight priorities of optical technology and sensors and sensory information processing.
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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 |
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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 |