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Jones, J. D. C.
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Publications (10/10 displayed)
- 2008Pulsed laser micromachining of yttria-stabilized zirconia dental ceramic for manufacturingcitations
- 2005Strain and temperature sensitivity of a single-mode polymer optical fibercitations
- 2005Delivery of nanosecond pulses through hollow core photonic crystal fibres and the associated damage limitationscitations
- 2005Single-mode mid-IR guidance in a hollow-core photonic crystal fibercitations
- 2005Developments towards controlled three-dimensional laser forming of continuous surfacescitations
- 2004Iterative 3D laser forming of continuous surfaces
- 2004Temperature dependence of the stress response of fibre Bragg gratingscitations
- 2003Dynamic distortion measurements during laser forming of Ti-6Al-4V and their comparison with a finite element modelcitations
- 2003Dynamic shape measurement system for laser materials processingcitations
- 2001Real-time, nonintrusive oxidation detection system for the welding of reactive aerospace materials
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article
Temperature dependence of the stress response of fibre Bragg gratings
Abstract
<p>Fibre Bragg gratings, used as stress sensing elements, show a temperature dependence of their stress response, which is mainly characterized by Young's modulus of the fibre material. The temperature dependence of the stress response of a fibre Bragg grating over a range from - 38 °C to + 110 °C has been measured. The stress sensitivity decreases linearly by 1.22 × 10<sup>-4</sup> K<sup>-1</sup> over this range which is nearly identical to the increase of Young's modulus of fused silica over this range implying that it is predominantly Young's modulus which defines and characterizes this thermal dependence. Significantly, bare and re-coated fibres show a markedly different behaviour below 0 °C due to the glass transition temperature of the jacket material. © 2004 IOP Publishing Ltd.</p>