TY - GEN
T1 - Experimental study of high electric current effects in carbon fiber polymer matrix composite
AU - Deierling, P. E.
AU - Zhupanska, Olesya I.
N1 - Funding Information:
The authors would like to acknowledge funding of this work by the US Air Force Office of Scientific Research (FA9550-09-1-0359), Dr. J. Harrison, Program Director. The authors extend their gratitude to Dr. D. Foster (AFRL) for assistance with materials. OIZ would like to thank Dr. C. Lee (AFOSR) and Dr. R. Sierakowski (US Air Force Academy) for encouragements and support.
PY - 2011
Y1 - 2011
N2 - Electrical and thermal responses of the carbon fiber polymer matrix composites subjected to relatively high (up to 75 A) electric currents are studied. A new fully automated experimental setup for real time measurements of the electric current, resistance, voltage, and temperature in carbon fiber polymer matrix composites has been developed. A series of electrical characterization tests on IM7/977-3 unidirectional and symmetric cross-ply composite laminates have been performed and the effects of electric current magnitude and duration, electrical resistance, and associated thermal effects have been investigated. It is determined that voltage-current relationship stays ohmic for up to 50 A DC currents, electrical resistance exhibits time-dependent behavior but is independent of temperature. It is shown that application of the electric current leads to a significant temperature gradient across the composite in the direction of the applied current and the temperature at the electrode-composite junction increases rapidly with an increase in the magnitude of the applied current. Temperature is determined to be a function of Joule heat produced in electrically conductive carbon fibers and electrical contact heat produced at composite-electrode interfaces.
AB - Electrical and thermal responses of the carbon fiber polymer matrix composites subjected to relatively high (up to 75 A) electric currents are studied. A new fully automated experimental setup for real time measurements of the electric current, resistance, voltage, and temperature in carbon fiber polymer matrix composites has been developed. A series of electrical characterization tests on IM7/977-3 unidirectional and symmetric cross-ply composite laminates have been performed and the effects of electric current magnitude and duration, electrical resistance, and associated thermal effects have been investigated. It is determined that voltage-current relationship stays ohmic for up to 50 A DC currents, electrical resistance exhibits time-dependent behavior but is independent of temperature. It is shown that application of the electric current leads to a significant temperature gradient across the composite in the direction of the applied current and the temperature at the electrode-composite junction increases rapidly with an increase in the magnitude of the applied current. Temperature is determined to be a function of Joule heat produced in electrically conductive carbon fibers and electrical contact heat produced at composite-electrode interfaces.
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U2 - 10.2514/6.2011-2113
DO - 10.2514/6.2011-2113
M3 - Conference contribution
AN - SCOPUS:84872482746
SN - 9781600869518
T3 - Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
BT - 52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
T2 - 52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Y2 - 4 April 2011 through 7 April 2011
ER -