Predictions of elastic property on 2.5D C/SiC composites based on numerical modeling and semi-analytical method |
| |
| Affiliation: | 1. Department of Engineering Mechanics, AML, School of Aerospace Engineering, Tsinghua University, Beijing 100084, China;2. High Performance Computing Center, School of Aerospace Engineering, Tsinghua University, Beijing 100084, China;1. School of Mechanical Engineering, Xiangtan University, Hunan 411105, China;2. Institute of Manufacturing Engineering, Huaqiao University, Fujian 361021, China;1. Key Laboratory of Advanced Ceramics and Machining Technology, Tianjin University, Ministry of Education, China;2. Sinoma Advanced Materials (Shandong) Co., Ltd, Shandong Province, China;1. Postdoctoral Research Center for Material Science and Engineering, Harbin Institute of Technology, 150001 Harbin, Heilongjiang Province, PR China;2. National Key Laboratory of Science and Technology for National Defence on Advanced Composites in Special Environments, Harbin Institute of Technology, 150001 Harbin, Heilongjiang Province, PR China;3. Shanghai Electro-Mechanical Engineering Institute, 201109 Shanghai, PR China;1. School of Energy and Power Engineering, Beihang University, Beijing 100083, China;2. School of Power and Energy, Northwestern Polytechnical University, Xi’an, 710072, China;3. Aviation Engineering Institute, Civil Aviation Flight University of China, Guanghan, 618307, China;1. School of Mechanical Engineering, Shandong University, Jinan 250061, China;2. Key Laboratory of High Efficiency and Clean Mechanical Manufacture of MOE/Key National Demonstration Center for Experimental Mechanical Engineering Education, Jinan 250061, China;3. Shandong Industrial Ceramic Research & Design Institute Co, Ltd, Zibo 255000, China |
| |
| Abstract: | In this paper, the predictions of elastic constants of 2.5D (three-dimension angle-interlock woven) continue carbon fiber reinforced silicon carbide (C/SiC) composites are studied by means of theoretical model and numerical simulation. A semi-analytical method expressing elastic constants in terms of microstructure geometrical parameters and constitute properties has been proposed. First, both the geometrical model of the 2.5D composite and the representative volume element (RVE) in both micro- and meso-scale are proposed. Second, the effective elastic properties of the RVE in 2.5D C/SiC composites are obtained using finite element method (FEM) simulation based on energy equivalent principle. Finally, the remedied spatial stiffness average (RSSA) method is proposed to obtain more accurate elastic constants using nine correction factor functions determined by FEM simulations, also the effects of geometrical variables on mechanical properties in 2.5D C/SiC composites are analyzed. These results will play an important role in designing advanced C/SiC composites. |
| |
| Keywords: | A. Ceramic matrix composites B. Mechanical properties C. Analytical modeling C. Finite element analysis (FEA) Representative volume element (RVE) |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
