Thermo-mechanical assessment of full SiC/SiC composite cladding for LWR applications with sensitivity analysis

Singh, Gyanender; Terrani, Kurt A.; Katoh, Yutai

doi:10.1016/j.jnucmat.2017.11.004

Cited by 56 publications

(54 citation statements)

References 38 publications

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“…As discussed in Ref. [23], irradiation induced swelling is the dominating mechanism for SiC-SiC material deformation in comparison to thermal expansion and creep. The neutron flux gradient across the width of the channel box, as shown in figure 7, is significant (~9%) and causes differential swelling in the channel box.…”

Section: Lateral Displacementmentioning

confidence: 92%

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Impact of Control Blade Insertion on the Deformation Behavior of SiC-SiC Channel Boxes in Boiling Water Reactors

Singh

Gorton

Schappel

et al. 2019

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Section: Lateral Displacementmentioning

confidence: 92%

“…The elastic moduli degrade with irradiation. The details about the implementation of elastic moduli degradation, and other details on the properties of SiC-SiC composite materials are available in Ref [23,26]…”

mentioning

confidence: 99%

Impact of Control Blade Insertion on the Deformation Behavior of SiC-SiC Channel Boxes in Boiling Water Reactors

Singh

Gorton

Schappel

et al. 2019

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“…However, fibers with high crystallinity and purity (e.g. Nicalon Type-S and Tyranno SA) could be manufactured and were found to be more stable under irradiation (Singh et al, 2018). This development has opened the door to further advance SiC/SiC composites for nuclear applications, where significant research has been conducted to characterize their properties (Katoh et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

A thermodynamics-based damage model for the non-linear mechanical behavior of SiC/SiC ceramic matrix composites in irradiation and thermal environments

Alabdullah

Ghoniem

2020

International Journal of Damage Mechanics

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A damage model is developed and validated with experimental data for the non-linear mechanical behavior of SiC/SiC composite materials in nuclear applications. Cyclic thermal and mechanical loading associated with neutron irradiation effects of these composites leads to wide-spread and progressive micro-cracking that leads to loss of thermal conductivity and further enhancement of thermo-mechanical damage. A physics-based model of wide-spread micro-cracking is developed within the thermodynamic framework of continuum damage mechanics. Evolution equations for damage parameters that describe the growth of continuum damage are developed, where the material variables are obtained from experiments. The model novelty is in coupling mechanical, thermal, and irradiation damage through a consistent thermodynamic framework, including loss of thermal conductivity due to the evolution of mechanically induced micro-cracks. A number of thermo-mechanical experiments were conducted to confirm model assumptions. The model is shown to be validated with out-of-pile experiments, and then implemented using commercial finite element code COMSOL to the fuel cladding problem with normal and high radiation dose cases.

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“…Continuous SiC/SiC fiber-reinforced ceramic-matrix composites (CMCs) have excellent properties such as high specific strength, high specific modulus, wear resistance, oxidation resistance, corrosion resistance, radiation resistance, and insensitivity to cracks and noncatastrophic fracture, which make it a new type of thermal structural material in the application prospects of aviation, aerospace, and energy [1][2][3]. SiC/SiC composites are mainly used for hot section components of high-performance aeroengines and industrial gas turbines and have potential applications in nuclear fusion reactors and fission reactors [4][5][6][7][8][9]. Solar Turbines Company uses SiC/SiC as the combustion chamber lining of Solar's Centaur 505 engine.…”

Section: Introductionmentioning

confidence: 99%

Temperature-dependent proportional limit stress of SiC/SiC fiber-reinforced ceramic-matrix composites

2020

High Temperature Materials and Processes

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AbstractIn this paper, the temperature-dependent proportional limit stress (PLS) of SiC/SiC fiber-reinforced ceramic-matrix composites (CMCs) is investigated using the micromechanical approach. The PLS of SiC/SiC is predicted using an energy balance approach considering the effect of environment temperature. The relation between the environment temperature, PLS, and composite damage state is established. The effects of the fiber volume, interface properties, and matrix properties on the temperature-dependent PLS and composite damage state of SiC/SiC composite are analyzed. The experimental PLS and interface debonding length of 2D SiC/SiC composites with the PyC and BN interphase at elevated temperatures are predicted. The temperature-dependent PLS of SiC/SiC composite increases with the fiber volume, interface shear stress and interface debonding energy, and the matrix fracture energy and decreases with the interface frictional coefficient at the same temperature.

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Thermo-mechanical assessment of full SiC/SiC composite cladding for LWR applications with sensitivity analysis

Cited by 56 publications

References 38 publications

Impact of Control Blade Insertion on the Deformation Behavior of SiC-SiC Channel Boxes in Boiling Water Reactors

Impact of Control Blade Insertion on the Deformation Behavior of SiC-SiC Channel Boxes in Boiling Water Reactors

A thermodynamics-based damage model for the non-linear mechanical behavior of SiC/SiC ceramic matrix composites in irradiation and thermal environments

Temperature-dependent proportional limit stress of SiC/SiC fiber-reinforced ceramic-matrix composites

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