期刊
COMPOSITE STRUCTURES
卷 122, 期 -, 页码 308-315出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2014.11.052
关键词
3-D multi-phase and multi-layer braided composite Micromechanical model; BP neural network; Elastic modulus
资金
- Fundamental Research Funds for the Central Universities [3102014JCS05003]
- National Natural Science Foundation of China [11302174]
This research is aimed to develop an integrated methodology based on micromechanical model and neural network to predict elastic modulus of 3-D multi-phase and multi-layer (MPML) braided composite. The micromechanical model including two-scale RVC modeling and strain energy model is firstly proposed. A back propagation (BP) neural network model is then developed to map the complex non-linear relationship between microstructural parameters and elastic modulus of the composite. The 3-D braided C/C-SiC composite is used as a case study. Predictions are compared with experimentally measured response to verify the developed technique. The results show that the developed methodology performs well in predicting the properties of the complex 3-D MPML braided composite. (C) 2014 Elsevier Ltd. All rights reserved.
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