TY - GEN
T1 - Overall Properties of Polymer Matrix Composites at High Temperatures
T2 - 38th Technical Conference of the American Society for Composites, ASC 2023
AU - Konduri, Teja G.K.
AU - Zhupanska, Olesya I.
N1 - Publisher Copyright:
© 2023 by DEStech Publications, Inc. and American Society for Composites. All rights reserved.
PY - 2023
Y1 - 2023
N2 - In this work, a micromechanics-based model for determining high-temperature thermophysical properties of carbon fiber reinforced polymer (CFRP) composites undergoing pyrolysis is presented. The model accounts for the mass loss and material phase changes. Material phase changes include emergence of the secondary char and gas phases in the polymer matrix. First-order Arrhenius kinetics is used to model polymer pyrolysis. The model also accounts for the temperature- and heating rate-dependent volume fractions of the polymer, char, and pyrolysis gas phases. Temperature- and heating rate-dependent representative volume elements (RVEs) of evolving microstructures were generated and numerical homogenization was performed to determine overall thermophysical properties of the CFRP composites. The micromechanics-based models were embedded into the finite element analysis (FEA)-based multiphysics modeling of lightning strike damage in CFRP composites. Computational studies were performed to analyze lightning strike induced thermal damage in a CFRP composite.
AB - In this work, a micromechanics-based model for determining high-temperature thermophysical properties of carbon fiber reinforced polymer (CFRP) composites undergoing pyrolysis is presented. The model accounts for the mass loss and material phase changes. Material phase changes include emergence of the secondary char and gas phases in the polymer matrix. First-order Arrhenius kinetics is used to model polymer pyrolysis. The model also accounts for the temperature- and heating rate-dependent volume fractions of the polymer, char, and pyrolysis gas phases. Temperature- and heating rate-dependent representative volume elements (RVEs) of evolving microstructures were generated and numerical homogenization was performed to determine overall thermophysical properties of the CFRP composites. The micromechanics-based models were embedded into the finite element analysis (FEA)-based multiphysics modeling of lightning strike damage in CFRP composites. Computational studies were performed to analyze lightning strike induced thermal damage in a CFRP composite.
UR - https://www.scopus.com/pages/publications/85178596777
UR - https://www.scopus.com/pages/publications/85178596777#tab=citedBy
U2 - 10.12783/asc38/36532
DO - 10.12783/asc38/36532
M3 - Conference contribution
AN - SCOPUS:85178596777
T3 - Proceedings of the American Society for Composites - 38th Technical Conference, ASC 2023
SP - 209
EP - 218
BT - Proceedings of the American Society for Composites - 38th Technical Conference, ASC 2023
A2 - Maiaru, Marianna
A2 - Odegard, Gregory
A2 - Bednarcyk, Brett
A2 - Pineda, Evan
PB - DEStech Publications
Y2 - 18 September 2023 through 20 September 2023
ER -