Similarity Criteria for Dusting of Plastic Materials

Uryukov, B. A.; Evdokimenko, Yu. I.; Kisel, V. M.; Tkachenko, Georgiy

doi:10.1023/b:joep.0000036502.40275.e0

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…2 were processed using similarity criteria for abrasive gas erosion of plastic materials [10]. The following option showed the lowest squared error (35%):…”

Section: Ruff-wiederhorn Hypothesismentioning

confidence: 99%

Semiempirical erosion model of plastic materials in a stream of solid particles

Uryukov

Tkachenko

2011

Powder Metall Met Ceram

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The paper analyzes the Ruff-Wiederhorn hypothesis that several particles participate in one erosion event in a stream of solid particles for plastic materials. The proposed erosion model is based on two kinds of particles, primary and secondary, that differently participate in the erosion process. The primary particles create a crater with a ridge around it due to residual deformation and the secondary particles remove the displaced material. The number of secondary particles in an erosion event is determined by criterial generalization of experimental data. It is shown that the dependence of the erosion rate on the particle speed changes its power from 3 up to 2 at small and large impact speeds, respectively. The erosion rate increases with heating to a certain limit as the number of secondary particles decreases. Too hard particles, which promote high sound speeds, decrease the erosion rate as compared with softer particles because of reduction in contact time.

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“…2 were processed using similarity criteria for abrasive gas erosion of plastic materials [10]. The following option showed the lowest squared error (35%):…”

Section: Ruff-wiederhorn Hypothesismentioning

confidence: 99%

Semiempirical erosion model of plastic materials in a stream of solid particles

Uryukov

Tkachenko

2011

Powder Metall Met Ceram

Self Cite

View full text Add to dashboard Cite

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Evolution law of the friction coefficient and fatigue test of the hold-down spring model for nuclear reactor vessel internals

Xie

Xue

Zhang

2018

Progress in Nuclear Energy

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Friction coefficient and limiter load test analysis by flexibility coefficient model of Hold-Down Spring of nuclear reactor vessel internals

2017

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The friction force between the contact surfaces of a reactor internal hold-down spring (HDS) and core barrel flanges can directly influence the axial stiffness of an HDS. However, friction coefficient cannot be obtained through theoretical analysis. This study performs a mathematical deduction of the physical model of an HDS. Moreover, a mathematical model of axial load P, displacement δ, and flexibility coefficient is established, and a set of test apparatuses is designed to simulate the preloading process of the HDS. According to the experimental research and theoretical analysis, P-δ curves and the flexibility coefficient λ are obtained in the loading processes of the HDS. The friction coefficient f of the M1000 HDS is further calculated as 0.224. The displacement limit load value (4,638 kN) can be obtained through a displacement limit experiment. With the friction coefficient considered, the theoretical load is 4,271 kN, which is relatively close to the experimental result. Thus, the friction coefficient exerts an influence on the displacement limit load P. The friction coefficient should be considered in the design analysis for HDS.

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Similarity Criteria for Dusting of Plastic Materials

Cited by 3 publications

References 4 publications

Semiempirical erosion model of plastic materials in a stream of solid particles

Semiempirical erosion model of plastic materials in a stream of solid particles

Evolution law of the friction coefficient and fatigue test of the hold-down spring model for nuclear reactor vessel internals

Friction coefficient and limiter load test analysis by flexibility coefficient model of Hold-Down Spring of nuclear reactor vessel internals

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