TY - GEN
T1 - Modeling of thermo-mechanical degradation of the polymer matrix composites at high temperatures
AU - Konduri, Teja
AU - Zhupanska, Olesya I.
AU - Deierling, Phillip E.
N1 - Publisher Copyright:
© 2019, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
PY - 2019
Y1 - 2019
N2 - The present paper is concerned with prediction of the overall thermal conductivity of carbon fiber polymer matrix composites during volumetric ablation due to pyrolytic thermal decomposition. Volumetric ablation describes the loss of mass process during which the overall volume of the composite material does not change in the presence of thermal decomposition (pyrolysis) of the polymer matrix. Thermal decomposition caused by heating leads to formation of solid pyrolytic and gaseous phases in the composite material. The volume fractions of char, gas, and polymer phases are temperature-dependent and are obtained in the present work from the Arrhenius-type equation describing decomposition of the polymer matrix. The microstructure generation algorithms are developed to create highly packed microstructures consisting of circular (representing fibers) and elliptical (representing pores) inclusions and to accommodate the growth of pores with temperature. The computational results for the overall thermal conductivity are obtained for the AS4/3501-6 composite in a temperature range up to 700 K.
AB - The present paper is concerned with prediction of the overall thermal conductivity of carbon fiber polymer matrix composites during volumetric ablation due to pyrolytic thermal decomposition. Volumetric ablation describes the loss of mass process during which the overall volume of the composite material does not change in the presence of thermal decomposition (pyrolysis) of the polymer matrix. Thermal decomposition caused by heating leads to formation of solid pyrolytic and gaseous phases in the composite material. The volume fractions of char, gas, and polymer phases are temperature-dependent and are obtained in the present work from the Arrhenius-type equation describing decomposition of the polymer matrix. The microstructure generation algorithms are developed to create highly packed microstructures consisting of circular (representing fibers) and elliptical (representing pores) inclusions and to accommodate the growth of pores with temperature. The computational results for the overall thermal conductivity are obtained for the AS4/3501-6 composite in a temperature range up to 700 K.
UR - http://www.scopus.com/inward/record.url?scp=85083944165&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85083944165&partnerID=8YFLogxK
U2 - 10.2514/6.2019-0165
DO - 10.2514/6.2019-0165
M3 - Conference contribution
AN - SCOPUS:85083944165
SN - 9781624105784
T3 - AIAA Scitech 2019 Forum
BT - AIAA Scitech 2019 Forum
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - AIAA Scitech Forum, 2019
Y2 - 7 January 2019 through 11 January 2019
ER -