Combined damaged elasticity and creep modeling of ceramics with wedge splitting tests

Samadi, Soheil; Jin, Shengli; Harmuth, Harald

doi:10.1016/j.ceramint.2021.05.315

Cited by 11 publications

(3 citation statements)

References 27 publications

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“…2,15 The data obtained through experimental campaigns are used to calibrate such models with varying degrees of complexity from linear thermoelastic to more complex models, including viscoplasticity and damage. [29][30][31] However, the behavior obtained through such models for a steel ladle is not validated due to a lack of experimental investigations. Therefore, to validate numerical models, experimental work is required to be carried out on an assembly that represents a real structure.…”

Section: Introductionmentioning

confidence: 99%

“…Finite element models are often used to investigate or design industrial installations such as steel ladles with different linings of refractory masonry 2,15 . The data obtained through experimental campaigns are used to calibrate such models with varying degrees of complexity from linear thermoelastic to more complex models, including viscoplasticity and damage 29–31 . However, the behavior obtained through such models for a steel ladle is not validated due to a lack of experimental investigations.…”

Section: Introductionmentioning

confidence: 99%

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Development and experimental characterization of the thermomechanical behavior of a scaled steel ladle

Gajjar,

Put,

Pereira

et al. 2024

Int J Applied Ceramic Tech

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A steel ladle usually employs mortarless refractory masonry in the innermost layer in direct contact with molten steel. The behavior of such masonry under high thermal loading is complex and essential for designing such installation. A large‐scale experimental campaign was carried out focusing on a simplified, laboratory‐scaled, pilot steel ladle built with multiple refractory linings as in an industrial ladle. Tests were performed under transient thermal loading up to 1400°C with new and used working linings. The results showed that the distribution of temperatures between the refractory linings was similar for all specimens and confirmed the importance of the selection of the refractory materials in the distinct linings of the ladle to limit heat losses. The heterogeneity in the distribution of dry joints and the effect of the dry joint thickness were also measured using strain gauges. The measurements indicate the effect of viscoplasticity in the working lining on the steel shell, which shows a progressive reduction in the strain starting at 1200°C. The tests performed on the working linings show lower strain built‐up due to large viscoplastic deformation and increased joint thickness.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development and experimental characterization of the thermomechanical behavior of a scaled steel ladle

Gajjar,

Put,

Pereira

et al. 2024

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

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“…The computer modelling of refractories’ mechanical behaviour is realised using two alternative approaches. The first one is a continuum-based approach, such as finite element method (FEM) [ 10 , 21 , 22 , 29 , 30 ], which allows the representation of complex shapes of constituents and their non-linear behaviour. However, this method has a limitation in the modelling of crack growth [ 27 , 31 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Quasi-Static and Dynamic Fracture of the Silica Refractory Using the Mesoscale Discrete Element Modelling

et al. 2021

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Computer modelling is a key tool in the optimisation and development of ceramic refractories utilised as insulation in high-temperature industrial furnaces and reactors. The paper is devoted to the mesoscale computer modelling of silica refractories using the method of homogeneously deformable discrete elements. Approaches to determine the local mechanical properties of the constituents from the global experimental failure parameters and respective crack trajectories are considered. Simulations of the uniaxial compressive and tensile failure in a wide range of quasi-static and dynamic loading rates (102 s−1) are performed. The upper limit of the dynamic loading rates corresponds to the most severe loading rates during the scrap loading on the refractory lining. The dependence of the strength, fracture energy, and brittleness at failure on the loading rate is analysed. The model illustrates that an increase in the loading rate is accompanied by a significant change in the mechanical response of the refractory, including a decrease in the brittleness at failure, a more dispersed failure process, and a higher fraction of the large grain failure. The variation of the grain–matrix interface’s strength has a higher impact on the static compressive than on the static tensile properties of the material, while the material’s dynamic tensile properties are more sensitive to the interface strength than the dynamic compressive properties.

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Research on creep damage model of high alumina bricks

Li²,

Tan³

et al. 2022

Ceramics International

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Combined damaged elasticity and creep modeling of ceramics with wedge splitting tests

Cited by 11 publications

References 27 publications

Development and experimental characterization of the thermomechanical behavior of a scaled steel ladle

Development and experimental characterization of the thermomechanical behavior of a scaled steel ladle

Analysis of the Quasi-Static and Dynamic Fracture of the Silica Refractory Using the Mesoscale Discrete Element Modelling

Research on creep damage model of high alumina bricks

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