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A non-destructive method for the measurement of residual strains in semi-crystalline polymer components
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Hughes, Darren J., Heeley, E. L. and Curfs, C.. (2011) A non-destructive method for the measurement of residual strains in semi-crystalline polymer components. Materials Letters, Vol.65 (No.3). pp. 530-533. ISSN 0167-577X
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Official URL: http://dx.doi.org/10.1016/j.matlet.2010.10.046
Abstract
A new non-destructive tool is presented, enabling the measurement of locked-in residual strains in semi-crystalline polymer-based components. The technique employs high-energy synchrotron X-rays to probe the variation of diffraction angle within a well-defined 'gauge volume' with a spatial resolution of the order of 1 mm. Lattice strain is calculated from the diffraction angles. An overview of the experimental methodology and underlying principles involved in the non-destructive evaluation of residual strain in polymer-based components is given. Preliminary results show that synchrotron X-rays can be used successfully to measure the internal elastic residual strain field in polymer components, being potentially applicable to other materials. The method was used successfully to measure residual strains in a commercial high density polyethylene gas pipeline sample.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Faculty of Science > WMG (Formerly the Warwick Manufacturing Group) |
| Library of Congress Subject Headings (LCSH): | Nondestructive testing, Residual stresses, Crystalline polymers |
| Journal or Publication Title: | Materials Letters |
| Publisher: | Elsevier BV |
| ISSN: | 0167-577X |
| Date: | 15 February 2011 |
| Volume: | Vol.65 |
| Number: | No.3 |
| Number of Pages: | 4 |
| Page Range: | pp. 530-533 |
| Identification Number: | 10.1016/j.matlet.2010.10.046 |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Access rights to Published version: | Restricted or Subscription Access |
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| URI: | http://wrap.warwick.ac.uk/id/eprint/41539 |
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