Improved unit cells to predict anisotropic thermal conductivity of three-dimensional four-directional braided composites by Monte-Carlo method

Fang, Jia-Wei; Quan, Yongkai; Dong, Bensi

doi:10.1016/j.ijheatmasstransfer.2023.124084

Cited by 9 publications

(1 citation statement)

References 21 publications

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“…Arbaouiet et al [ 35 ] researched the thermomechanical properties of 3D braided composite materials. Fang et al [ 36 ] accomplished the high-precision computation of effective thermal conductivity based upon a geometry model of parameterized modified 3D braided composites. Wu et al [ 37 ] reported the low-velocity impact behaviors and the degradation mechanism of fiber-reinforced composites in different directions after thermo-oxidative ageing.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Analysis of Thermophysical Properties of 3D Carbon/Epoxy Braided Composites with Varying Temperature

Jiang,

Li,

Wang

et al. 2024

Polymers

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A three-dimensional helix geometry unit cell is established to simulate the complex spatial configuration of 3D braided composites. Initially, different types of yarn factors, such as yarn path, cross-sectional shape, properties, and braid direction, are explained. Then, the multiphase finite element method is used to develop a new theoretical calculation procedure based on the unit cell for predicting the impacts of environmental temperature on the thermophysical properties of 3D four-direction carbon/epoxy braided composites. The changing rule and distribution characteristics of the thermophysical properties for 3D four-direction carbon/epoxy braided composites are obtained at temperatures ranging from room temperature to 200 °C. The influences of environmental temperature on the coefficients of thermal expansion (CTE) and the coefficients of thermal conduction (CTC) are evaluated, by which some important conclusions are drawn. A comparison is conducted between theoretical and experimental results, revealing that variations in temperature exert a notable influence on the thermophysical characteristics of 3D four-directional carbon/epoxy braided composites. The theoretical calculation procedure is an effective tool for the mechanical property analysis of composite materials with complex geometries.

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Section: Introductionmentioning

confidence: 99%