Averging the Viscoelastic Properties of a Rubber-Cord Ply in a Plane Stress State

Sheshenin, S. V.; Gritchenko, M. E.; Chistyakov, P. V.

doi:10.1007/s11029-021-09970-1

Cited by 3 publications

(1 citation statement)

References 19 publications

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“…Work [13] is devoted to the study and determination of viscoelastic properties of a layer of rubber cord under plane stress. This work is devoted to the determination of relaxation functions of rubber and rubber cord and includes the following aspects: experimental determination of viscoelastic properties of rubber and rubber cord and calculations of viscoelastic properties with viscoelasticity with the help of linear theory, using the approximation method and alignment.…”

Section: Introductionmentioning

confidence: 99%

Failure analysis of rubber-cord couplings of ER2 series electric trains

Gorbacovs

Gavrilovs

Eiduks

et al. 2023

22nd International Scientific Conference Engineering for Rural Development Proceedings

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The article analyzes the statistics of rubber-cord coupling failures during 2015 till 2022. The analysis of failures shows that prevailing cases are rupture of the rubber-cord coupling side surface. It should be noted that the cost of eliminating the consequences of a rubber-cord coupling rupture is on average 575.21 EUR for one unscheduled repair. To study the possible reasons of the rubber-cord coupling rupture, the couplings removed from the motor cars after unscheduled repairs were taken. In the process of research, the warming temperature of the rubber-cord coupling, hardness at various temperatures and forces acting on the rubber-cord coupling during operation, i.e. the operational conditions of the rubber-cord coupling were determined. The purpose of these studies is to determine the possible causes of the rubber-cord coupling side surface. The research process of rubber-cord couplings consisted of four stages. 1. Determination of the geometric dimensions of the coupling and comparison of the obtained data with the data of ISO 14691:2008. 2. Theoretical determination (calculations) of: torque, centrifugal force, shear stress and radial load acting on the coupling. 3. Determination of hardness on the Shore A scale depending on the temperature of the rubber-cord coupling in three temperature ranges t = -20 °C; 0 °C; + 22 °C; + 60 °C in the RTU laboratory. Comparison of the obtained data with the data of ISO 14691:2008. 4. Drawing the main conclusions about the possible causes of rupture of the rubber-cord coupling. The purpose of these studies is to determine the possible causes of the rubber-cord coupling side surface. The forces and stresses acting in the zones of damage to rubber-cord couplings are determined. According to the results of calculations, the values of the forces Рс; Рс1 and stresses τk caused by the torque Ma acting on the rubber-cord coupling in the destruction zones and the values of forces and stresses capable of causing the destruction of rubber-cord couplings are determined. In the article hardness of the rubber-cord coupling was also studied at various temperature conditions.

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Section: Introductionmentioning

confidence: 99%

Failure analysis of rubber-cord couplings of ER2 series electric trains

Gorbacovs

Gavrilovs

Eiduks

et al. 2023

22nd International Scientific Conference Engineering for Rural Development Proceedings

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Fatigue and Creep Properties of Carbon Nanotube/Aramid Fiber Synergistically-Reinforced Rubber Sealing Composites

Zhang

Xiang

et al. 2023

Fibers Polym

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Experimental Study of the Rheonomic Properties of Breaker Rubber and Rubber-Cord Composite Under Quasi-Static Loading

Sheshenin

Yikun

Chistyakov

et al. 2023

Comp Mech Comput Appl Int J

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Samples of filled breaker rubber and rubber-cord composite were tested for quasi-static cycling loadings with constant strain rates. The dependence of the rubber mix stress-strain diagram on the strain rate was revealed even for low strain rates. A difference was observed between stress-strain diagrams for the first loading and for subsequent ones. The second and subsequent diagrams are close to each other. This effect is referred to in the literature as the Mullins effect. Eight experiments were conducted with different loading programs to determine the manifestation of this effect for breaker rubber. The stress-strain curves depend differently on the strain rate for the first and subsequent loadings. The dependence on strain rate can be described as using the generalized Maxwell model for the first loading, but not for subsequent ones. Moreover, a similar study was done for a bi-ply rubber-cord sample with a 45° cord angle. The same conclusion regarding the Maxwell model applicability was also proven. Finally, numerical simulation of the bi-ply rubber-cord composite was carried out to determine the dimensions of the edge effect zones and, thereby, to estimate the allowable dimensions of the sample. Two types of boundary effects were revealed. Their dimensions were calculated for the 45° rubber-cord sample with various lengths. It was shown that short samples can also be used, if the longitudinal strain is properly recalculated.

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Averging the Viscoelastic Properties of a Rubber-Cord Ply in a Plane Stress State

Cited by 3 publications

References 19 publications

Failure analysis of rubber-cord couplings of ER2 series electric trains

Failure analysis of rubber-cord couplings of ER2 series electric trains

Fatigue and Creep Properties of Carbon Nanotube/Aramid Fiber Synergistically-Reinforced Rubber Sealing Composites

Experimental Study of the Rheonomic Properties of Breaker Rubber and Rubber-Cord Composite Under Quasi-Static Loading

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