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Thermo-mechanical coupling behavior of needle-punched carbon/carbon composites

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posted on 2025-05-08, 13:53 authored by Meng Han, Xingyu Zhang, Zhichao Wang, Vadim SilberschmidtVadim Silberschmidt, Qinsheng Bi
Needle-punched carbon/carbon (NP C/C) composites are widely used in thermal protection systems for aerospace engineering. Oxidation and ablation affect their mechanical properties at high temperatures of service environment. A thermo-mechanical coupling model is proposed to predict the residual strength of oxidized bundles. A multiscale oxidation behavior of an NP C/C composite is simulated to investigate the progressive damage and oxidation of structures with thermo-mechanical coupling effects. Uniaxial tension experiments on the NP C/C composite were carried out at room temperature and 750°C to verify the proposed model. It is shown that mechanical properties of the composite decreased significantly after oxidation at 750°C-up to 40%, while the ultimate strain reduced by 5%. The proposed thermo-mechanical coupling model could be used to predict the failure and residual mechanical properties caused by the oxidation process.

Funding

National Natural Science Foundation of China (Grant No. 12102152)

State Key Laboratory of Mechanics and Control of Mechanical Structures (Nanjing University of Aeronautics and Astronautics, Grant No. MCMS-E-0221Y02)

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

Science and Engineering of Composite Materials

Volume

31

Issue

1

Publisher

De Gruyter

Version

  • VoR (Version of Record)

Rights holder

© The Author(s)

Publisher statement

This work is licensed under the Creative Commons Attribution 4.0 International License.

Acceptance date

2024-10-14

Publication date

2024-11-21

Copyright date

2024

ISSN

0792-1233

eISSN

2191-0359

Language

  • en

Depositor

Prof Vadim Silberschmidt. Deposit date: 4 January 2025

Article number

20240045

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