Multi-Scale Prediction of Thermal and Mechanical Properties of C/SiC Braided Composites

ZHANG Yongzheng; LIU Lei; LIU Qi; XU Guangkui

doi:10.21656/1000-0887.440056

Volume 44 Issue 10

Oct. 2023

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Article Navigation > Applied Mathematics and Mechanics > 2023 > 44(10): 1157-1171

ZHANG Yongzheng, LIU Lei, LIU Qi, XU Guangkui. Multi-Scale Prediction of Thermal and Mechanical Properties of C/SiC Braided Composites[J]. Applied Mathematics and Mechanics, 2023, 44(10): 1157-1171. doi: 10.21656/1000-0887.440056

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Multi-Scale Prediction of Thermal and Mechanical Properties of C/SiC Braided Composites

doi: 10.21656/1000-0887.440056

ZHANG Yongzheng^1
,,
LIU Lei^{2
,
,},
LIU Qi^2
,,
XU Guangkui^1
,

1.
School of Aerospace Engineering, Xi'an Jiaotong University, Xi'an 710049, P.R.China
2.
State Key Laboratory of Aerodynamics, Mianyang, Sichuang 621000, P.R.China

Received Date: 2023-03-06
Rev Recd Date: 2023-07-14
Publish Date: 2023-10-31

Abstract

Abstract

C/SiC composites have been widely used in aerospace, national defense, and chemical industries due to their excellent mechanical and thermal properties. Accurate knowledge about the mechanical/thermal properties of C/SiC composites is very important for their efficient application in related fields. Based on the representative volume element (RVE) and periodic boundary conditions, a micro/meso single-cell model for C/SiC composites was established in view of the non-uniform and multi-scale characteristics of fiber bundles, such as the volume fraction, the interweaving mode, and the weaving dimension. The finite element software ABAQUS was used to predict the micro-scale thermal and mechanical properties of the fiber bundle, and the fiber bundle properties were introduced into the mesoscopic model to analyze and obtain the macroscopic thermal and mechanical properties of the composite. Based on this multi-scale correlation analysis method, the thermal conductivity and thermal expansion coefficient of fiber bundles and C/SiC composites were further studied at the operating temperatures ranging from 27~1 227 ℃. The study has certain guiding significance for the application of C/SiC composites in engineering.
- C/SiC composite,
- multi-scale modeling,
- finite element analysis,
- periodic boundary condition,
- thermal/mechanical property

(Recommended by LIU Shaobao, M. AMM Editorial Board)

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References(26)

References

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