@article{ART002980652},
author={Han Meng and Zhou Chuwei and Silberschmidt Vadim V. and Bi Qinsheng},
title={Oxidation behaviour and residual mechanical properties of carbon/carbon composites},
journal={Carbon Letters},
issn={1976-4251},
year={2023},
volume={33},
number={4},
pages={1241-1252},
doi={10.1007/s42823-023-00491-6}
TY - JOUR
AU - Han Meng
AU - Zhou Chuwei
AU - Silberschmidt Vadim V.
AU - Bi Qinsheng
TI - Oxidation behaviour and residual mechanical properties of carbon/carbon composites
JO - Carbon Letters
PY - 2023
VL - 33
IS - 4
PB - Korean Carbon Society
SP - 1241
EP - 1252
SN - 1976-4251
AB - Carbon/carbon composites are widely used in re-entry engineering applications thanks to their excellent mechanical properties at high temperatures, but they are easily oxidized in the oxygenated atmosphere. It is important to research their residual mechanical properties influenced by oxidation behaviour, in order to ensure the in-service safety. A microscale degradation model is proposed to predict the oxidation behavior based on the mass conservation and diffusion equations, the derived equivalent steady recession rate of composite is employed to evaluate the residual mechanical properties of the oxidized composite theoretically. A numerical strategy is proposed to investigate the oxidation mechanism of this composite. The differences in the degradation rate between the fiber and the matrix resulted in the steady state and an unchanged shape of the front. Residual mechanical properties of composite with three different domains of oxidation were simulated with a multiscale coupled model. The numerical results demonstrated that the mechanical properties of this composite decreased by 24–32% after oxidation for 30 min at 850 °C. Oxidation also caused the stress redistribution inside components, with the stress concentration diminishing their load-bearing capacity. The local areas of increased stress in the pyrocarbon matrix provided new ways for diffusion of oxygen into the pyrocarbon matrix and fibers.
KW - Carbon/carbon composites Mechanical properties Numerical analysis Oxidation
DO - 10.1007/s42823-023-00491-6
ER -
Han Meng, Zhou Chuwei, Silberschmidt Vadim V. and Bi Qinsheng. (2023). Oxidation behaviour and residual mechanical properties of carbon/carbon composites. Carbon Letters, 33(4), 1241-1252.
Han Meng, Zhou Chuwei, Silberschmidt Vadim V. and Bi Qinsheng. 2023, "Oxidation behaviour and residual mechanical properties of carbon/carbon composites", Carbon Letters, vol.33, no.4 pp.1241-1252. Available from: doi:10.1007/s42823-023-00491-6
Han Meng, Zhou Chuwei, Silberschmidt Vadim V., Bi Qinsheng "Oxidation behaviour and residual mechanical properties of carbon/carbon composites" Carbon Letters 33.4 pp.1241-1252 (2023) : 1241.
Han Meng, Zhou Chuwei, Silberschmidt Vadim V., Bi Qinsheng. Oxidation behaviour and residual mechanical properties of carbon/carbon composites. 2023; 33(4), 1241-1252. Available from: doi:10.1007/s42823-023-00491-6
Han Meng, Zhou Chuwei, Silberschmidt Vadim V. and Bi Qinsheng. "Oxidation behaviour and residual mechanical properties of carbon/carbon composites" Carbon Letters 33, no.4 (2023) : 1241-1252.doi: 10.1007/s42823-023-00491-6
Han Meng; Zhou Chuwei; Silberschmidt Vadim V.; Bi Qinsheng. Oxidation behaviour and residual mechanical properties of carbon/carbon composites. Carbon Letters, 33(4), 1241-1252. doi: 10.1007/s42823-023-00491-6
Han Meng; Zhou Chuwei; Silberschmidt Vadim V.; Bi Qinsheng. Oxidation behaviour and residual mechanical properties of carbon/carbon composites. Carbon Letters. 2023; 33(4) 1241-1252. doi: 10.1007/s42823-023-00491-6
Han Meng, Zhou Chuwei, Silberschmidt Vadim V., Bi Qinsheng. Oxidation behaviour and residual mechanical properties of carbon/carbon composites. 2023; 33(4), 1241-1252. Available from: doi:10.1007/s42823-023-00491-6
Han Meng, Zhou Chuwei, Silberschmidt Vadim V. and Bi Qinsheng. "Oxidation behaviour and residual mechanical properties of carbon/carbon composites" Carbon Letters 33, no.4 (2023) : 1241-1252.doi: 10.1007/s42823-023-00491-6
