Review: creep of fibre-reinforced ceramic matrix composites

Lamon, Jacques

doi:10.1080/09506608.2018.1564182

Cited by 27 publications

(4 citation statements)

References 118 publications

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“…The creep curves obtained by long‐term creep tests for 3000 h under different loads are shown in Figure 5A.The steady‐state creep rate

{\overset{ε}{true}}_{normals}

is the slope of the creep curve in the second stage, which is an important index for evaluating the creep properties of materials. [ 24 ] The total strain

ε

during creep is composed of two parts: the instantaneous strain

ε_{0}

and the creep strain

ε_{cr} .

[ 38 ] The total strain at 3000 h

ε_{t = 3000 h}

, the instantaneous strain

ε_{0}

, and the steady‐state creep rate

{\overset{ε}{true}}_{normals}

are included in Table 2. The histograms of the instantaneous and creep strains included in the 3000 h total strain for each specimen are shown in Figure 5B.…”

Section: Resultsmentioning

confidence: 99%

“…Creep is also an important mechanical property of composite materials, which refers to the phenomenon that the deformation gradually increases with time under a constant load lower than the tensile strength. [24][25][26][27] The creep mechanism in composites is often complex, which is mainly due to the resin matrix, [28,29] but is also significantly influenced by the fiber orientation and distribution. [30] Eftekhari et al [31] performed creep tests on short glass fiber reinforced injection molded thermoplastic composites in flat sheets.…”

Section: Introductionmentioning

confidence: 99%

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Creep properties and damage mechanism of molded glass fiber reinforced plastic

Liu

et al. 2023

Polymer Composites

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Glass fiber reinforced plastic (GFRP) has become one of the most commonly used materials in the structure of aero engines in the last decades. In this study, GFRP was fabricated by molding with phenolic resin as the matrix. Specimens were prepared along horizontal and vertical directions. Fiber distribution, tensile properties, long‐term creep performance, and damage mechanism were systematically investigated. Experimental results shows that horizontal specimens have better tensile properties, lower viscoelasticity, and excellent creep resistance. The fibers inside the cylindrical material exhibit a 3D core‐shell morphology with transverse isotropy in the core region. Load is carried by the fibers and the damage is in the form of fiber fracture and pull‐out in horizontal specimens. Random distribution and interweaving leads to double fracture sections of fibers. Load is carried by the interface and resin, and the damage is in the form of fiber pull‐out laterally and interfacial debonding in vertical specimens. High viscoelasticity of the resin and the weak interfacial bonding ability lead to large creep deformation of vertical specimens. In addition, the creep strain under different loads can be accurately predicted by Modified Time Hardening model.

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“…The creep curves obtained by long‐term creep tests for 3000 h under different loads are shown in Figure 5A.The steady‐state creep rate

{\overset{ε}{true}}_{normals}

is the slope of the creep curve in the second stage, which is an important index for evaluating the creep properties of materials. [ 24 ] The total strain

ε

during creep is composed of two parts: the instantaneous strain

ε_{0}

and the creep strain

ε_{cr} .

[ 38 ] The total strain at 3000 h

ε_{t = 3000 h}

, the instantaneous strain

ε_{0}

, and the steady‐state creep rate

{\overset{ε}{true}}_{normals}

are included in Table 2. The histograms of the instantaneous and creep strains included in the 3000 h total strain for each specimen are shown in Figure 5B.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Creep properties and damage mechanism of molded glass fiber reinforced plastic

Liu

et al. 2023

Polymer Composites

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“…With the rapid aerospace propulsion development in recent years, carbon fiber reinforced silicon carbide (C/ SiC) composite becomes one of the most crucial materials in ceramic matrix composite (CMC) family, for the superior specific strength and modulus, good corrosion resistance and ultrahigh temperature performance [1][2][3][4][5][6]. More researchers are focusing into CMC structural components like CMC tubes since CMC is used in engineering applications [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

A novel and predictive process of manufacturing 3DN C/SiC torque tube

Zhao

Zhang

2023

Mater. Res. Express

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In this research, a novel method of CVI+RMI 3DN C/SiC torque tube preparation has been researched. CVI+RMI 3DN C/SiC flat panel was evaluated by Archimedes drainage method for density and open porosity, SEM for morphological characterization, XRD for phase composition characterization, and chemical method for composition mass and volume content. It has an average density of 2.19 g/cm3, and open porosity of 10%. The computed chemical composition method findings are undoubtedly in line with the fiber design volume percentage of 30%. Tensile and shear mechanical tests on 3DN C/SiC standard sample were investigated, with good performance. The average tensile and shear strength was 141.64 MPa and 86.24 MPa respectively. 3DN C/SiC torque tubes were prepared by the same process, and the torsional mechanical tests were carried out. According to the mechanical parameters of the flat panel 3DN C/SiC sample, the mechanical properties of stress distribution and shear stress-strain curves for the torque tube are predicted by using the finite element simulation method, which is in good agreement with the test results. The test and simulation error of the maximum shear strength is only about 2%.

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“…Owning to their high specific strength at elevated temperature, creep resistance, low thermal expansion, high thermal conductivity, chemical inertness and weaving suitability, SiC-based fibers have become a strategic component for the long reinforcement of SiC/SiC Ceramic Matrix Composite (CMC), for application in power plant, jet engine or sport automotive [1,2]. Like many oxide [3][4][5][6][7] or non oxide [8][9][10][11] brittle materials, these fibers are however subjected to a thermally activated delayed failure under the combined effect of environment and subcritical stress (for temperature below the creep threshold <1100 °C [12]). A power law is commonly accepted to predict such lifetime (tf), relating the stress intensity factor (KI) to crack growth velocity (V) (Eq.…”

Section: Introductionmentioning

confidence: 99%