Multiscale modelling for the thermal transport behaviour of ceramic matrix composites with hierarchical structures

被引：2
作者：
Yang, Suning [1 ,2 ]
Shen, Liang [1 ]
Li, Wenhao [1 ]
Zhang, Zhongwei [3 ]
Yang, Zhengmao [1 ]
机构：
[1] Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
[2] China Univ Min & Technol, Sch Mech & Civil Engn, Beijing 100083, Peoples R China
[3] Beijing Inst Technol, Inst Adv Struct Technol, Beijing 100081, Peoples R China
来源：
COMPOSITES COMMUNICATIONS | 2024年 / 46卷
基金：
中国国家自然科学基金;
关键词：
Ceramic -matrix composites; Hierarchical structure; Thermal conductivity; Multiscale modelling; Porosity; CONDUCTIVITY; DEPENDENCE; SIMULATION; POROSITY; MODULUS;
D O I：
10.1016/j.coco.2024.101848
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
Ceramic matrix composites contain many initial defects due to their "ceramic" properties and process characteristics, which presents challenges for the accurate prediction of their material equivalent properties. In this paper, multiscale and high-fidelity modelling of fibre-reinforced C/SiC composites are carried out on a "macromeso-micro" cross-scale, and the thermal conductivity and relative thermal conductivity of multilevel structure composites based on a hierarchical multiscale model are proposed. The influence laws of SiC porous matrix, carbon fibre volume fraction and temperature on the thermal conductivity of composite materials are given. These findings provide useful insights into equivalent computational methods for material properties under the defect growth of thermomechanical loading.
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页数：7
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