| EPSRC Reference: |
GR/M37417/01 |
| Title: |
SOLID PHASE PROCESSING OF POLYMERS: STRESS-STRAIN LAWS FOR PROCESS AND PRODUCT PROPERTY PREDICTION |
| Principal Investigator: |
Sweeney, Professor J |
| Other Investigators: |
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| Department: |
Mechanical and Medical Engineering |
| Organisation: |
University of Bradford |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 January 1999 |
Ends: |
31 December 2000 |
Value (£): |
134,624
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Summary on Grant Application Form |
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In solid phase polymer processing, material is subject to large deformations at high temperature. Consequently large-scale molecular orientation takes place which results in enhancement of polymer properties, such as stiffness and toughness. Progress has been made using models of the polymer network to predict the shapes of products formed in this way. The mechanical properties (Young's modulus, yield stress) of the product depend on the strain and temperature histories prevailing during the process. The unique aspect of this project is that the development of these properties forms an integral part of the process model. In order to model the evolution of mechanical properties as the solid product cools to room temperature, a stress-strain law is required which can function under temperature-varying conditions. An experimental programme of stretching and cooling experiments on three classes of polymer will be be undertaken to develop and verify such a law. Its ability to predict mechanical properties of the final product will be of crucial importance and its viability in terms of application in finite element analyses of complex shapes will be explored.
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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.brad.ac.uk |