Numerical simulation on thermal expansion coefficient of 3D braided C/C composites

Hu, Chunxia; Li, Hejun; Zhang, Shouyang; Song, Yongshan

doi:10.1007/s12598-013-0083-4

Cited by 21 publications

(9 citation statements)

References 18 publications

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“…In their work, the finite element analysis results were in good agreement with experimental data. Hu studied the axial CTEs of 3D braided C/C composites with different densities and 3D braided preforms through a numerical simulation approach [22]. By this work, the axial CTEs of the C/C composites decreased with the increment of braiding angle, fibre volume fraction and porosity of the materials.…”

Section: Introductionmentioning

confidence: 94%

Multi-scale modeling of thermal expansion coefficients of C/C composites at high temperature

et al. 2015

Materials & Design

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Section: Introductionmentioning

confidence: 94%

Multi-scale modeling of thermal expansion coefficients of C/C composites at high temperature

et al. 2015

Materials & Design

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“…Before the simulation, the modulus of elasticity and Poisson's ratio of the MoS 2 /Ta composite coatings were experimented by the tensile testing machine of MTS and nano indentation instrument of Hysitron, respectively. The mechanical properties of the composite coatings of the SiC-VN-MoS 2 /Ta are shown in Table 3 [43,44]. The bearing capacity and crack generation of the composite coatings were studied at room temperature.…”

Section: Bearing Capacity and Crack Generation Analysismentioning

confidence: 99%

Tribology and Anti-Ablation Properties of SiC-VN-MoS2/Ta Composite Coatings on Carbon/Carbon Composites from 25 to 800 °C

Cao

Chen

Wang³

et al. 2021

Materials

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To improve the self-lubrication and anti-ablation performances of C/C (carbon/carbon) composites from 25 to 800 °C, we engineered three layers of composite coatings consisting of SiC–VN–MoS2/Ta to deposit on the surface of the C/C composites. The tribology and anti-ablation properties of the composite coatings were experimented under dry sliding wear. The equivalent stress and deformation of the composite coatings are studied. The results show that the CoFs (coefficients of friction) of the C/C composites are decreased by 156% at 800 °C due to the new generated self-lubricating compounds from the MoS2/Ta and VN coating. The anti-ablation of the C/C composites are improved by 25,300% due to the silicon glass, and the generated compounds from V, Mo and Si. The deformation of the C/C substrate under the protection of these coatings looks like a quadrangular star. The cack of the C/C composites is easily generated without the protection from coatings.

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“…In addition to that, under the consideration of fiber undulation and porosity, Kong et al established a finite element model of 2.5D C/SiC composites. On the basis of morphology of the yarn unit model and numerical analysis, Hu et al studied variations on the CTE of 3D‐braided C/C composites. Moreover, Lu et al developed a model to investigate the effect of interfacial properties on the thermophysical properties of 3D‐braided composites.…”

Section: Introductionmentioning

confidence: 99%

Prediction and optimization design for thermal expansion coefficients of three‐dimensional n‐directional‐braided composites

et al. 2018

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A new model based on thermomechanics analysis is established to predict the coefficients of thermal expansion (CTEs) of 3D n-directional (n = 4, 5, full-5, 6, or 7)braided composites in this article. In this model, relationships between stresses and strains generated in fiber and polymer matrix are portrayed by a bridging matrix to obtain elastic constants of yarns. Based on equivalent fiber cross-sections and space projections of yarns, effective overall CTEs of 3D n-directional-braided composites are obtained. We introduce parameterization into the finite element modeling to complete our verification. The theoretical predictions are consistent with the finite element method and existing experiments. This article gives detailed insights into the effect of braiding parameters on CTEs to explore indication of addition yarns for thermal expansion performance. As an application of the proposed model, we utilize an improved genetic algorithm with objective weight mechanism and dynamic mutation to obtain the multi-objective optimization design for zero expansion 3D-braided composites. POLYM. COMPOS., 40:2495-2509, 2019. © 2018 Society of Plastics Engineers under the consideration of fiber undulation and porosity, Kong et al. [25] established a finite element model of 2.5D C/SiC composites. On the basis of morphology of the yarn unit model and numerical analysis, Hu et al. [26] studied variations on the CTE of 3D-braided C/C composites. Moreover, Lu et al. [27] developed a model to investigate the effect of interfacial properties on the thermophysical properties of 3D-braided composites. As previously

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Numerical simulation on thermal expansion coefficient of 3D braided C/C composites

Cited by 21 publications

References 18 publications

Multi-scale modeling of thermal expansion coefficients of C/C composites at high temperature

Multi-scale modeling of thermal expansion coefficients of C/C composites at high temperature

Tribology and Anti-Ablation Properties of SiC-VN-MoS2/Ta Composite Coatings on Carbon/Carbon Composites from 25 to 800 °C

Prediction and optimization design for thermal expansion coefficients of three‐dimensional n‐directional‐braided composites

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