TY - JOUR
T1 - Measurement of thermal elongation induced strain of a composite material using a polarization maintaining photonic crystal fiber sensor
AU - Ramakrishnan, Manjusha
AU - Rajan, Ginu
AU - Semenova, Yuliya
AU - Boczkowska, Anna
AU - Domański, Andrzej
AU - Wolinski, Tomasz
AU - Farrell, Gerald
PY - 2013
Y1 - 2013
N2 - A measurement scheme to measure a composite material's thermal elongation induced strain using a buffer stripped Polarization Maintaining Photonic Crystal Fiber (PM-PCF) sensor is investigated in this paper. A composite material sample with an embedded PM-PCF based polarimetric fiber sensor is fabricated and characterized. It is found that the buffer stripped PM-PCF polarimetric sensor which is temperature insensitive in free space, shows significant phase change when embedded in the composite material due the thermal elongation of the composite material. The temperature induced phase change of buffer stripped PM-PCF polarimetric sensors embedded in carbon-epoxy, E glass-epoxy, E glass-unsaturated polyester resin composite material samples is measured and the results are used to determine the thermal elongation induced strain over a temperature range from 0 °C to 65 °C. The experimentally measured thermal elongation induced strain of the same samples are found to be 3.648 × 10-5 ε/°C, 1.52 × 10-5 ε/°C, and 2.42 × 10-5 ε/°C. The Coefficient of Thermal Expansion (CTE) estimated theoretically using composite laminate theory shows good agreement with that derived using the PM-PCF sensor. The present investigation offers a simple non destructive method to determine thermal elongation induced strain in composite structures. It is shown that the method allows the measurement of thermal expansion for those composite materials having negligible residual strain and moisture expansion.
AB - A measurement scheme to measure a composite material's thermal elongation induced strain using a buffer stripped Polarization Maintaining Photonic Crystal Fiber (PM-PCF) sensor is investigated in this paper. A composite material sample with an embedded PM-PCF based polarimetric fiber sensor is fabricated and characterized. It is found that the buffer stripped PM-PCF polarimetric sensor which is temperature insensitive in free space, shows significant phase change when embedded in the composite material due the thermal elongation of the composite material. The temperature induced phase change of buffer stripped PM-PCF polarimetric sensors embedded in carbon-epoxy, E glass-epoxy, E glass-unsaturated polyester resin composite material samples is measured and the results are used to determine the thermal elongation induced strain over a temperature range from 0 °C to 65 °C. The experimentally measured thermal elongation induced strain of the same samples are found to be 3.648 × 10-5 ε/°C, 1.52 × 10-5 ε/°C, and 2.42 × 10-5 ε/°C. The Coefficient of Thermal Expansion (CTE) estimated theoretically using composite laminate theory shows good agreement with that derived using the PM-PCF sensor. The present investigation offers a simple non destructive method to determine thermal elongation induced strain in composite structures. It is shown that the method allows the measurement of thermal expansion for those composite materials having negligible residual strain and moisture expansion.
KW - Composite material
KW - Polarimetric fiber sensor
KW - Polarization Maintaining Photonic Crystal Fiber (PM-PCF)
KW - Thermal elongation induced strain
UR - http://www.scopus.com/inward/record.url?scp=84870919529&partnerID=8YFLogxK
U2 - 10.1016/j.sna.2012.11.010
DO - 10.1016/j.sna.2012.11.010
M3 - Article
AN - SCOPUS:84870919529
SN - 0924-4247
VL - 190
SP - 44
EP - 51
JO - Sensors and Actuators, A: Physical
JF - Sensors and Actuators, A: Physical
ER -