Experimental assessment of laminated material anisotropic thermal conductivity

Conde, Kevin Eduardo de; Prado, Alfredo; Garcia, Ézio Castejon; Magalhães, Elisan dos Santos

doi:10.1016/j.icheatmasstransfer.2021.105593

Cited by 5 publications

(2 citation statements)

References 10 publications

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“…Te calculation ignores the thermal resistance of contact between diferent materials in the RVE model and only considers the infuence of the thermal conductivity on the temperature feld of the RVE model. Te temperature distribution of the RVE model was calculated using FEA, the temperature distribution of the elements in the grid was calculated according to equation (9), and the heat fow density was calculated according to equation (10). According to the geometric characteristics of the RVE model, the thermal conductivity of the RVE model in the x, y, and z directions was calculated, respectively.…”

Section: Finite Element Analysismentioning

confidence: 99%

“…Te thermal conductivity of SiC f /SiC composites is anisotropic, due to their fber architecture. Tere are many methods for measuring the thermal conductivity of anisotropic materials, such as the steady-state thermal refectivity method [3], the transient plane source method [4,5], the hot wire method [6], the steady-state protection hot plate method [7], and other steady-state methods [8,9]. Zhang et al [10] used three methods to measure the anisotropic thermal conductivity of CMCs.…”

Section: Introductionmentioning

confidence: 99%

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Experimental and Numerical Analysis of the Thermal Conductivity of SiCf/SiC Composites

Chen²,

Yang

2023

Advances in Materials Science and Engineering

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SiC fiber-reinforced silicon matrix (SiCf/SiC) composites are of significant interest for the aircraft engine. The thermal conductive behaviors of [0-90-0]s SiCf/SiC composites along in-plane and out-of-plane (thickness) directions were reported in this paper. The thermal conductivity of the SiCf/SiC composite was tested by using the steady-state measuring apparatus. Then, the thermal conductivity of the SiC matrix was predicted by finite element analysis (FEA). The representative volume element (RVE) models of SiCf/SiC composites were built, and FEA was used to investigate thermal conductive behaviors. It was found that the thermal conductivity along the fiber radial direction was greater than it was in the axial direction in the SiCf/SiC composite and that the thermal conductivity of the out-of-plane direction is lower than that of the in-plane one. The thermal conductivity of the SiCf/SiC composite in the in-plane direction at room temperature was 31.1 Wm−1K−1 and 28.5 Wm−1K−1, and the thermal conductivity in the thickness direction was 24.9 Wm−1K−1. The experimental thermal conductivity showed a good agreement with the thermal conductivity of FEA.

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Section: Finite Element Analysismentioning

confidence: 99%