Variational Analysis of a Quasistatic Contact Problem

2016 ◽  
pp. 245-262
Author(s):  
Mircea Sofonea
Keyword(s):  
Contact Problem ◽  
Variational Analysis

scholarly journals VARIATIONAL ANALYSIS OF AN ELECTRO-VISCOELASTIC CONTACT PROBLEM WITH FRICTION AND ADHESION

2016 ◽  
Vol 53 (1) ◽  
pp. 161-185 ◽  
Author(s):  
NADHIR CHOUGUI ◽  
SALAH DRABLA ◽  
NACERDINNE HEMICI
Keyword(s):  
Contact Problem ◽  
Variational Analysis ◽  
Viscoelastic Contact

scholarly journals Variational analysis of an electro viscoelastic contact problem with friction

2013 ◽  
Vol 14 (1) ◽  
pp. 93-100 ◽  
Author(s):  
Lerguet Zhor ◽  
Ziloukha Zellagui ◽  
Hamid Benseridi ◽  
Salah Drabla
Keyword(s):  
Contact Problem ◽  
Variational Analysis ◽  
Viscoelastic Contact

scholarly journals The Indentation Rolling Resistance in Belt Conveyors: A Model for the Viscoelastic Friction

Lubricants ◽  
2019 ◽  
Vol 7 (7) ◽  
pp. 58 ◽  
Author(s):  
Nicola Menga ◽  
Francesco Bottiglione ◽  
Giuseppe Carbone
Keyword(s):  
Contact Problem ◽  
Finite Thickness ◽  
Numerical Procedure ◽  
Contact Problems ◽  
Accurate Solution ◽  
Rolling Contact ◽  
Viscoelastic Layer ◽  
Force Coefficient ◽  
Belt Conveyors ◽  
Energy Dissipated

In this paper, we study the steady-state rolling contact of a linear viscoelastic layer of finite thickness and a rigid indenter made of a periodic array of equally spaced rigid cylinders. The viscoelastic contact model is derived by means of Green’s function approach, which allows solving the contact problem with the sliding velocity as a control parameter. The contact problem is solved by means of an accurate numerical procedure developed for general two-dimensional contact geometries. The effect of geometrical quantities (layer thickness, cylinders radii, and cylinders spacing), material properties (viscoelastic moduli, relaxation time) and operative conditions (load, velocity) are all investigated. Physical quantities typical of contact problems (contact areas, deformed profiles, etc.) are calculated and discussed. Special emphasis is dedicated to the viscoelastic friction force coefficient and to the energy dissipated per unit time. The discussion is focused on the role played by the deformation localized at the contact spots and the one in the bulk of the thin layer, due to layer bending. The model is proposed as an accurate solution for engineering applications such as belt conveyors, in which the energy dissipated on the rolling contact of idle rollers can, in some cases, be by far the most important contribution to their energy consumption.

scholarly journals Recent development in nonlinear and variational analysis and optimization

Optimization ◽  
2021 ◽  
Vol 70 (4) ◽  
pp. 689-692
Author(s):  
Elisabeth Köbis ◽  
Jinlu Li ◽  
Adrian Petruşel ◽  
Jen-Chih Yao
Keyword(s):  
Variational Analysis ◽  
Variational Analysis And Optimization
Sign in / Sign up

Export Citation Format

Share Document