| EPSRC Reference: |
GR/R84870/01 |
| Title: |
ROPA: The Role of Irregularity in Microstructure on the Mechanical Behaviour of Auxetic Materials |
| Principal Investigator: |
Smith, Professor CW |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Engineering Computer Science and Maths |
| Organisation: |
University of Exeter |
| Scheme: |
ROPA |
| Starts: |
01 October 2002 |
Ends: |
30 September 2004 |
Value (£): |
104,875
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| EPSRC Research Topic Classifications: |
| Biomaterials |
Materials Characterisation |
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Summary on Grant Application Form |
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New MEMS, smart damping and dielectric technologies are new emerging application areas for for materials with negative Poisson's ratios (auxetic materials), in addition to the other well known advantages that classical elasticity theory predicts auxetics have over positive Poisson's ratio materials. The underlying mechanisms producing auxetic behaviour have been modelled using a microstructure based tessellating unit cell approach. This may be appropriate for some highly ordered molecular auxetics but not so for other disordered or damaged materials. Models so far proposed for these materials require perfect symmetry, which is not observed in the irregular microstructure of auxetic foams , microporous polymers, biological and other materials. This project aims to extend the modelling methodology for microstructural auxetics to incorporate irregularity, i.e. distributions of unit cell size and shape, orientaion, connectivity, neighbour effects and quasi-random damage. This understanding of irregularity in microstructure may go on to inform the development of new auxetic materials and improve manufacturing of existing materials.
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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.ex.ac.uk |