Next Article in Journal
Numerical Simulation of Static Seal Contact Mechanics Including Hydrostatic Load at the Contacting Interface
Next Article in Special Issue
Roughness-Induced Adhesive Hysteresis in Self-Affine Fractal Surfaces
Previous Article in Journal
Study of Frictional Effects of Granite Subjected to Quasi-Static Contact Loading
Previous Article in Special Issue
The Basin Stability of Bi-Stable Friction-Excited Oscillators
Article

Viscoelastic Effects during Tangential Contact Analyzed by a Novel Finite Element Approach with Embedded Interface Profiles

by *,† and
IMT School for Advanced Studies Lucca, Piazza San Francesco 19, 55100 Lucca, Italy
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Lubricants 2020, 8(12), 107; https://doi.org/10.3390/lubricants8120107
Received: 20 November 2020 / Revised: 16 December 2020 / Accepted: 16 December 2020 / Published: 19 December 2020
(This article belongs to the Special Issue Interfacial Dissipative Phenomena in Tribomechanical Systems)
A computational approach that is based on interface finite elements with eMbedded Profiles for Joint Roughness (MPJR) is exploited in order to study the viscoelastic contact problems with any complex shape of the indenting profiles. The MPJR finite elements, previously developed for partial slip contact problems, are herein further generalized in order to deal with finite sliding displacements. The approach is applied to a case study concerning a periodic contact problem between a sinusoidal profile and a viscoelastic layer of finite thickness. In particular, the effect of using three different rheological models that are based on Prony series (with one, two, or three arms) to approximate the viscoelastic behaviour of a real polymer is investigated. The method allows for predicting the whole transient regime during the normal contact problem and the subsequent sliding scenario from full stick to full slip, and then up to gross sliding. The effects of the viscoelastic model approximation and of the sliding velocities are carefully investigated. The proposed approach aims at tackling a class of problems that are difficult to address with other methods, which include the possibility of analysing indenters of generic profile, the capability of simulating partial slip and gross slip due to finite slidings, and, finally, the possibility of simultaneously investigating dissipative phenomena, like viscoelastic dissipation and energy losses due to interface friction. View Full-Text
Keywords: viscoelasticity; contact mechanics; finite element method viscoelasticity; contact mechanics; finite element method
Show Figures

Figure 1

MDPI and ACS Style

Bonari, J.; Paggi, M. Viscoelastic Effects during Tangential Contact Analyzed by a Novel Finite Element Approach with Embedded Interface Profiles. Lubricants 2020, 8, 107. https://doi.org/10.3390/lubricants8120107

AMA Style

Bonari J, Paggi M. Viscoelastic Effects during Tangential Contact Analyzed by a Novel Finite Element Approach with Embedded Interface Profiles. Lubricants. 2020; 8(12):107. https://doi.org/10.3390/lubricants8120107

Chicago/Turabian Style

Bonari, Jacopo, and Marco Paggi. 2020. "Viscoelastic Effects during Tangential Contact Analyzed by a Novel Finite Element Approach with Embedded Interface Profiles" Lubricants 8, no. 12: 107. https://doi.org/10.3390/lubricants8120107

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop