Mechanical properties of a carbon fiber reinforced self-healing multilayered matrix composite at elevated temperatures

Zhang, Chengyu; Qiao, Shuqing; Yan, Kefei; Liu, Yongsheng; Wu, Qi; Han, Dong; Li, Mei

doi:10.1016/j.msea.2011.01.009

Cited by 22 publications

(13 citation statements)

References 33 publications

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“…14 Some interesting phenomena have been observed in ultra-hightemperature anaerobic experiments. It is found that the tensile strength and failure strain, in-plane shear strength and interlaminar shear strength increase with temperature up to 1000 • C and then decrease at 1100 and 1200 • C. 15 The variation of tensile modulus is similar. The variation of mechanical properties with temperature is related to the TRS distribution, and the performance improvement in vacuum is attributed to the release of TRS at elevated temperatures.…”

Section: Experimental Observationsmentioning

confidence: 81%

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A physically based thermo‐elastoplastic constitutive model for braided CMCs‐SiC at ultra‐high temperature

Chen

Wang

et al. 2021

J Am Ceram Soc.

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Complex microstructure and multiple internal microcrack propagation of braided silicon carbide ceramic matrix composites (CMCs-SiC) make their mechanical behavior remarkably nonlinear. Still, few models have been developed at ultra-high temperature due to the challenge to incorporate detailed micromechanisms of nonlinearity into the formulation. Based on the observations of fracture morphologies of previous experiments of CMCs-SiC under different stress states and current on-axis tensile experiments of 2D C/SiC composites at ultra-high temperature, some assumptions are proposed. Then, a physically based constitutive model at ultra-high temperature is established within the thermo-elastoplastic framework. The novelty of this model is that we proposed a thermal yield criterion, which considers the material orthotropy, tensioncompression asymmetry, unilateral crack closure effect, and temperature effect. The thermal hardening effect is a distinctive phenomenon for CMCs-SiC in vacuum and is described using an improved Johnson-Cook model. The proposed model is implemented using a return mapping algorithm. The results show that the model predictions of stress-strain relationships agree well with experimental data at different stress states and different temperatures.

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Section: Experimental Observationsmentioning

confidence: 81%

“…16 However, the critical stress of C/SiC composite increases with temperature. 15 In addition, the average crack density of HN-SiC/BN/SiC composite decreases little with increasing temperature up…”

Section: Experimental Observationsmentioning

confidence: 97%

A physically based thermo‐elastoplastic constitutive model for braided CMCs‐SiC at ultra‐high temperature

Chen

Wang

et al. 2021

J Am Ceram Soc.

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“…As such, many efforts have been and continue to be made to overcome the oxidation problem. This has lead to the development of self-healing matrix materials [85][86][87][88][89][90][91], fiber coatings that shield the fiber from the oxidizing environment [47,92], and improvements in SiC fibers to reduce oxygen content and achieve near-stoichiometric fibers [19,20,93].…”

Section: Ceramic Matrix Compositesmentioning

confidence: 99%

Creep of Hi-Nicalon S Ceramic Fiber Tows at 800 deg C in Air and in Silicic Acid-Saturated Steam

Robertson¹

2015

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“…After healing, the discontinuity is immobilized, resulting in the restoration of most of the mechanical properties [1]. The self-healing property also allows these materials to be used to protect or reduce oxidation or corrosion, as a self-healing protective coating, or even to improve mechanical properties [5][6][7]. The self-healing process would be a great advance in the use of ceramic materials, since it is known that the mechanical properties of these materials limit their use in some applications because they are subject to catastrophic fractures in a fragile way, with little energy absorption [8].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the self-healing capacity of ceramics produced with alumina and silicon carbide

Souza

Paiva

2022

Cerâmica

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The self-healing capacity of a ceramic material produced by uniaxial pressing with alumina (Al 2 O 3 ), silicon carbide (SiC), and magnesium oxide (MgO) was evaluated. To assess self-healing, a discontinuity was generated on the surface of the specimens. The healing time in the oven, at a temperature of 1000 ºC, was 1, 30, and 60 min. The specimens were analyzed by physical and mechanical tests. The results showed that, for the mixture containing 15% SiC, the specimens healed at 60 min had an increase in flexural strength of 84.9% when compared to the specimens that were only indented while for the specimens containing 20% SiC, this increase was 61.1% at 30 min. For the 30 min healing time, there was a reduction in the size of the discontinuity in the specimens by about 19.1% and 14.8%, for the formulation containing 15% and 20% of SiC, respectively.

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Mechanical properties of a carbon fiber reinforced self-healing multilayered matrix composite at elevated temperatures

Cited by 22 publications

References 33 publications

A physically based thermo‐elastoplastic constitutive model for braided CMCs‐SiC at ultra‐high temperature

A physically based thermo‐elastoplastic constitutive model for braided CMCs‐SiC at ultra‐high temperature

Creep of Hi-Nicalon S Ceramic Fiber Tows at 800 deg C in Air and in Silicic Acid-Saturated Steam

Evaluation of the self-healing capacity of ceramics produced with alumina and silicon carbide

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