Multiscale FEM approach for hysteresis friction of rubber on rough surfaces

Wagner, P.; Wriggers, Peter; Klapproth, Corinna; Prange, Corinna; Wies, Burkhard

doi:10.1016/j.cma.2015.08.003

Cited by 47 publications

(19 citation statements)

References 33 publications

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“…The surface can be approximated with a certain number of sinusoidal functions by decomposing the HDCF or the PSDF like it is shown in Fig. 1 [4], [5]. The scheme of the multiscale homogenization method is shown in Fig.…”

Section: Surface Characterizationmentioning

confidence: 99%

Multiscale Rubber Friction Analysis on Rough and Flexible Surfaces

Hartung

Kaliske

2017

Proc Appl Math and Mech

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In this work, a multiscale homogenization approach is introduced to provide friction features between rubber and rough contact partners. Different length scales of the rough surface are considered by using a decomposition of the height difference correlation (HDCF) or the power spectral density function (PSDF) in several sinusoidal waves to accumulate the micro-and mesoscopic friction into a macroscopic friction coefficient. By using the finite element method (FEM), the sensitivity of the influencing factors for instance slip velocity and contact pressure may be investigated for rigid and flexible surfaces in the two-and the three-dimensional case.

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Section: Surface Characterizationmentioning

confidence: 99%

Multiscale Rubber Friction Analysis on Rough and Flexible Surfaces

Hartung

Kaliske

2017

Proc Appl Math and Mech

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“…The general approach seems to assume that the peak heights of the asperities obey the Gaussian distribution and each contact of the asperities is the Hertzian contact. With the development of computational approaches, some studies in recent years have utilized the finite element method (FEM) for the contact analysis of the interfaces in microscale [11][12][13][14]. These studies have measured or preliminarily presumed the surface profile of the interfaces and created the finite element (FE) model of the micro asperities.…”

Section: Introductionmentioning

confidence: 99%

Interfacial Element for Finite Element Modal Analysis of Bolted Joints

Kishimoto¹,

Kobayashi²,

Ohtsuka³

et al. 2021

14th WCCM-ECCOMAS Congress

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Multi-material structures are going to be a main scheme to construct automobiles. For the construction of multi-material structures, techniques to join dissimilar materials are required. The major joining techniques are classified into welding, adhesion and mechanical fastening such as bolted joints and riveting. Especially, bolted joints enable joining of metallic materials (steel and aluminium alloy, etc.) and non-metallic materials (CFRP, etc.) with high joint strength. However, the total stiffness of structures with bolted joints is relatively low because interfaces in bolted joints just contact each other, and its interfacial stiffness is lower than elastic modulus of base materials. Moreover, interfacial stiffness of bolted joints depends on clamping force of bolt and nut. This study has proposed an interfacial element for finite element modal analysis of bolted joints. The interfacial element simulates interfacial stiffness of bolted joints. Contact of interfaces is assumed to be the Hertzian contact of elastic asperities whose peak heights obey the Gaussian distribution. Based on this assumption, the stiffness of the interfacial element is derived from the compressive stress and the surface texture of the interfaces. By using the finite element model with the interfacial element, the modal analysis computes the natural frequency and the vibration mode. Finite element simulations and hammering tests have been conducted with several bolted joints. In general, the natural frequency of the bolted joints in the hammering tests increases with the increase in the clamping force, but it is lower than the calculation results in which the stiffness reduction of the jointed interfaces is ignored. The calculation results by using the proposed interfacial element agree with the hammering tests. Therefore, the proposed interfacial element contributes to improvement of modal analysis of bolted joints by mathematically modelling stiffness reduction of jointed interfaces based on tribology.

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“…At present, there are many research studies on the static stiffness calculation of rubber components under the condition of small deformation at room temperature [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Study of Vertical Characteristics with Changes in Prepressure of Rubber Pad Used by High‐Speed EMU

Chi

Dai

et al. 2020

Advances in Materials Science and Engineering

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Rubber spring plays an important role in improving train performance, so the study of rubber spring is one of the focuses of train dynamics. The vertical characteristic parameters of rubber spring are affected by prepressure significantly, as a result of varying parameters of static stiffness, dynamic stiffness, periodic energy consumption, damping coefficient, and so on. In order to use the theoretical method to calculate the precise static stiffness and predict the dynamic characteristics and to reduce the workload of the rubber spring performance test, this paper takes the annular rubber pad as an example to study with different prepressures. In this paper, the convexity coefficient correction formula (simply called the CCCF) for static stiffness calculation and the dynamic fiducial conversion coefficient (simply called the DFCC) method based on different prepressures are proposed. Through further analysis, the accuracy of CCCF and DFCC is proved both theoretically and experimentally. The results have shown precise prediction of the variation of prepressure on rubber spring parameters by using CCCF and DFCC and can be used as the reference of accurate vertical dynamic-static characteristics of the rubber spring.

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Multiscale FEM approach for hysteresis friction of rubber on rough surfaces

Cited by 47 publications

References 33 publications

Multiscale Rubber Friction Analysis on Rough and Flexible Surfaces

Multiscale Rubber Friction Analysis on Rough and Flexible Surfaces

Interfacial Element for Finite Element Modal Analysis of Bolted Joints

Study of Vertical Characteristics with Changes in Prepressure of Rubber Pad Used by High‐Speed EMU

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