Multi-scale modeling of thermal expansion coefficients of C/C composites at high temperature |
| |
| Affiliation: | 1. Institute of Engineering Mechanics, Beijing Jiaotong University, Beijing 100044, China;2. School of Mechanical Science and Engineering, Northeast Petroleum University, Daqing City 163318, China;3. State Key Laboratory for Tuburlence and Complex Systems, College of Engineering, Peking University, Beijing 100871, China;1. Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-Inspired Energy Materials and Devices, School of Chemistry and Environment, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;2. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, China;3. International College, Beijing University of Agriculture, Beijing 102206, China;1. Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-Inspired Energy Materials and Devices, School of Chemistry and Environment, Beijing University of Aeronautics and Astronautics, Beijing 100191, PR China;2. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Chinese Academy of Sciences, Shanghai 200050, PR China;3. China Academy of Machinery of Science & Technology, Beijing 100044, PR China;1. State Key Laboratory of Solidification Processing, C/C Composites Research Center, Northwestern Polytechnical University, Xi''an 710072, PR China;2. Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Science, Northwestern Polytechnical University, Xi''an 710072, PR China;1. College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073, PR China;2. Taiyuan Satellite Launch Center, Kelan, Shanxi 036304, PR China |
| |
| Abstract: | In-plane and out-of-plane coefficients of thermal expansion (CTEs) are important parameters for thermodynamic analysis of Carbon/Carbon (C/C) composite. In this study, CTEs of a high performance 3D orthogonal woven C/C composite at high temperature are studied by multi-scale mechanical modeling using the finite element method. Two representative volume element (RVE) models at different length scales are used to evaluate the CTEs of the C/C material. Micro-scale model predicts the CTEs at the fibre tow scale in the three orthogonal directions (x, y and z). The output results from the micro-scale model are then incorporated in the meso-scale model to obtain the in-plane and out-of-plane CTEs of the 3D C/C composite. The modeling results have good agreement with the experimental results reported in references. Based on the numerical approach, global CTEs of the 3D C/C composite are calculated from 300 to 2500 K, and their temperature dependences are discussed. The current applied multi-scale models provide an efficient approach to predict the CTEs of 3D textile materials, which will give some highlights for thermodynamic analysis and structures design of the C/C composite. |
| |
| Keywords: | Carbon/Carbon composite Coefficients of thermal expansion Multi-scale modeling High temperature Manufacturing defects |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
