Hostname: page-component-78c5997874-t5tsf Total loading time: 0 Render date: 2024-11-02T21:08:46.699Z Has data issue: false hasContentIssue false
  • English
  • Français

Single-Mode Polymer Optical Fiber Sensors for Large Strain Applications

Published online by Cambridge University Press:  26 February 2011

Sharon M. Kiesel ,
Kara Peters ,
Tasnim Hassan  and
Mervyn Kowalsky
Sharon M. Kiesel
Affiliation:
[email protected], North Carolina State University, Mechanical and Aerospace Engineering, Campus Box 7910, 3211 Broughton Hall, Raleigh, NC, 27695, United States
Kara Peters
Affiliation:
[email protected], North Carolina State University, Mechanical and Aerospace Engineering, Campus Box 7910, 3211 Broughton Hall, Raleigh, NC, 27695, United States
Tasnim Hassan
Affiliation:
[email protected], North Carolina State University, Department of Civil, Construction and Environmental Engineering, 208 Mann Hall, NCSU Campus Box 7908, Raleigh, NC, 27695, United States
Mervyn Kowalsky
Affiliation:
[email protected], North Carolina State University, Department of Civil, Construction and Environmental Engineering, 208 Mann Hall, NCSU Campus Box 7908, Raleigh, NC, 27695, United States
Get access

Abstract

This paper characterizes an intrinsic, single-mode, polymer optical fiber (POF) sensor for use in large-strain applications such as civil infrastructures subjected to earthquake loading or systems with large shape changes such as morphing aircraft. The opto-mechanical response was formulated for the POF including a second-order (in strain) photoelastic effect as well as a second-order (in strain) solution for the deformation of the POF during loading. It is shown that four independent mechanical and opto-mechanical constants are required for the small deformation regime and six additional independent mechanical and opto-mechanical constants are required for the large deformation regime. The mechanical nonlinearity of a typical polymer optical fiber was experimentally measured in tension at various loading rates. The secant modulus of elasticity measured at small strains, roughly up to 2% strain, was measured to be ∼4GPa whereas at larger strains, roughly up to 4.5% strain, the secant modulus was measured to be ∼4.8GPa. As the loading rate was increased the yield strain increased, ranging from ∼3.2% at 1mm/min to ∼5% at 305 mm/min.

Keywords

fiberstress/strain relationshippolymer
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 969: Symposium W – Heterogeneous Integration of Materials for Passive Components and Smart Systems , 2006 , 0969-W05-05
Copyright
Copyright © Materials Research Society 2007

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Measurements Group 2004. Strain gage technology, product information. Raleigh, NC.Google Scholar
2. Xiong, Z., Peng, G. D., Wu, B., & Chu, P. L. 1999. Highly tunable Bragg gratings in singlemode polymer optical fibers. IEEE Photonics Technology Letters 11(3): 352–354.Google Scholar
3. Van Steenkiste, R. J. & Springer, G. S. 1997. Strain and temperature measurement with fiber optic sensors. Lancaster, PA: Technomic Publishing.Google Scholar
4. Haslach, H. W. & Sirkis, J. S. 1991. Surface-mounted optical fiber strain sensor design. Applied Optics 30(28): 4069–4080.Google Scholar
5. Butter, C. D. & Hocker, G. B. 1978. Fiber optics strain gauge. Applied Optics 17(18): 2867–2869.Google Scholar
6. Kiesel, S., Van Vickle, P., Peters, K., Hassan, T., & Kowalsky, M. 2005. Intrinsic polymer optical fiber sensors for high-strain applications. Proceedings of ASME IMECE 2005, paper # 81448.Google Scholar
7. Nye, J. F. 1985. Physical properties of crystals: their representation by tensors and matrices. Oxford: Oxford Science Publications.Google Scholar
8. Vedam, K. & Srinivasan, R. 1967. Non-linear piezo-optics. Acta Crystallographica 22(5): 630–634.Google Scholar
9. Bertholds, A. & Dandliker, R., 1987. Deformation of single-mode optical fibers under static longitudinal stress. Journal of Lightwave Technology 5(7): 895–900.Google Scholar
10. Nellen, P. M., Mauron, P., Frank, A., Sennhauser, U., Bohnert, K., Pequignot, P., Bodor, P., & Brandle, H. 2003. Reliability of fiber Bragg grating based sensors for downhole applications. Sensors and Actuators A 103(3): 364–376.Google Scholar
11. Murhanghan, F. D. 1951. Finite Deformation of an Elastic Solid. London: Wiley & Sons, Inc. Google Scholar
12. McCrum, N. G., Buckley, C. P., and Bucknall, C. B.. Principles of Polymer Engineering. Oxford Science Publications. 1997. pg. 184–189.Google Scholar
13. Mallinder, F. P. and Proctor, B. A. 1964. Elastic constants of fused silica as a function of large tensile strain. Physics and Chemistry of Glasses 5(4):91–103.Google Scholar