Fatigue Wear Modeling of Elastomers

Goryacheva, I. G.; Stepanov, F. I.; Torskaya, E. V.

doi:10.1134/s1029959919010107

Cited by 12 publications

(8 citation statements)

References 12 publications

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“…At the same time, the training suit aims to provide athletes with a scientific basis to improve their ability to resist muscle fatigue and improve competition performance and to promote the development of sports in China. It also provides new ideas for the design and development of special functional training suits and the development of tight-fitting sports equipment [3,4].…”

Section: Background and Significancementioning

confidence: 99%

Influence mechanism of running sportswear fatigue based on BP neural network

Liu

2021

EURASIP J. Adv. Signal Process.

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The fatigue of running sportswear is reflected in the fatigue caused by the tightness of the tights on the skin surface of the limbs, trunk, and other parts during long-term running sports. However, the current research on the fatigue of running sportswear is not deep enough. Therefore, the purpose of this study is to study the mechanism of the fatigue of running sportswear based on BP neural network. This article first takes sportswear as the starting point and uses the surface myoelectricity index as a physiological quantity as a means to combine clothing with sports medicine and sports physiology, breaking the traditional shackles of subjective assessment of fatigue, and giving play to the advantages of interdisciplinary to expand the new direction of the apparel industry and, secondly, use muscle fatigue evaluation method to analyze the muscles of the lower leg under the pressure of sportswear to analyze the strength of the EMG signal and the number of participating sports units and the frequency of discharge synchronization. Experimental data shows that the AUC is 0.756 when wearing sports tights, the sensitivity and specificity are 72% and 19%, and the accuracy is 65%. The experimental results show that clothing pressure affects the fatigue of running sportswear based on BP neural network.

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Section: Background and Significancementioning

confidence: 99%

Influence mechanism of running sportswear fatigue based on BP neural network

Liu

2021

EURASIP J. Adv. Signal Process.

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“…Wear models based on the criterion of maximum shear stresses were described in [ 35 ] for an elastic half-space and in [ 36 ] for materials with elastic coatings. Fatigue wear of viscoelastic half-space was considered in [ 37 ] using the criterion of reduced stresses described above. Removal of material without changing the shape of the surface of the half-space occurs while maintaining contact and internal stresses.…”

Section: Introductionmentioning

confidence: 99%

“…This paper presents the results of modeling the fatigue wear of relatively compliant coatings made of viscoelastic materials, based on the criterion of reduced stresses. This study is a logical continuation of modeling the fatigue wear of elastic layered bodies [ 36 ] and viscoelastic half-space [ 37 ].…”

Section: Introductionmentioning

confidence: 99%

Modeling of Fatigue Wear of Viscoelastic Coatings

Stepanov

Torskaya

2021

Materials

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A new model for studying the kinetics of fatigue wear of a viscoelastic coating bonded to a rigid substrate is proposed. The fatigue mechanism is due to the cyclic interaction of the coating with a rough counterbody, which is modeled by a periodic system of smooth indenters. The study includes the solution of the problem of sliding contact of the indenter at a constant velocity along the viscoelastic coating, the calculation of stresses taking into account the mutual effect, and study of the process of damage accumulation in the material. The calculation of the damage function of the surface layer was carried out using the reduced stress criterion. Assuming the possibility of summation of accumulated damage, two processes were considered: delamination of surface layers of the coating and continuous fracture of the surface by the fatigue mechanism. The effect of the sliding velocity and viscoelastic properties of the material on the damage accumulation and the coating wear rate was analyzed. Two types of load, constant and stochastically varying, were used in modeling and analysis. It was found that the rate of fatigue wear of the coating increased and then became constant.

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“…Thus, a number of units of modern machines are based on the use of the phenomenon of friction: mechanical brakes, friction mechanisms, gears; as well as some technological processes: friction stir welding and friction stir processing. That is why the study of the phenomena occurring in friction is one of the priority problems of modern technical science [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…In the contact zone of two bodies, intense processes of deformation, mixing and damage accumulation occur. Carrying out experimental measurements directly in this zone in dynamics is too difficult to implement, therefore, to study the processes taking place in the contact zone based on the methods of numerical simulation is in great demand [3][4][5][6]. The ability to explicitly describe the accumulation and generation of damage, as well as mass mixing, makes the method of movable cellular automata (MCA) a powerful tool for studying the dynamics of contact interaction [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

3D simulation of dry friction of metal-based composites

2019

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A numerical 3D model of friction at mesoscale of the contact patch between steel samples and composite steel samples with carbon nanoinclusions has been developed based on the movable cellular automaton method. The response function of automata simulating steel corresponds to an elastic-plastic body with linear hardening, and the function for simulating carbon corresponds to an elastic-plastic body with bilinear hardening. Von Mises criterion is used for breaking bonds between the automata, and the criterion based on plastic heat is used for coupling the automata. The values of basic parameters of the model, as well as the loading conditions, that allow the formation of the characteristic quasi-liquid layer in the friction zone are determined. It was shown that the presence of carbon nanoinclusions in the contact region leads to decreasing of the coefficient of friction, lower values of stress, and higher shear strain in the friction zone.

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Fatigue Wear Modeling of Elastomers

Cited by 12 publications

References 12 publications

Influence mechanism of running sportswear fatigue based on BP neural network

Influence mechanism of running sportswear fatigue based on BP neural network

Modeling of Fatigue Wear of Viscoelastic Coatings

3D simulation of dry friction of metal-based composites

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