64 citations · 295 across the 28 of their papers we have counts for
13 papers · 1 filter
Viscoelastic amplification of the pull-off stress in the detachment of a rigid flat punch from an adhesive soft viscoelastic layer
Ali Maghami, Michele Ciavarella, Antonio Papangelo
The problem of the detachment of a sufficiently large flat indenter from a plane adhesive viscoelastic strip of thickness "b" is studied. For any given retraction speed, three diff…
Detachment of a rigid flat punch from a viscoelastic material
Antonio Papangelo, Michele Ciavarella
We show that the detachment of a flat punch from a viscoelastic substrate has a relatively simple behavior, framed between the Kendall's elastic solution at the relaxed modulus and…
A simplified theory of "stickiness" due to electroadhesion between rough surfaces
M. Ciavarella
Building on theories of Persson, we derive a simpler theory for electroadhesion between rough surfaces using BAM (Bearing Area Model) of Ciavarella, or previous ideas by Persson an…
Universal features in "stickiness" criteria for soft adhesion with rough surfaces
Michele Ciavarella
A very interesting recent paper by Dalvi et al. has demonstrated convincingly with adhesion experiments of a soft material with a hard rough material that the simple energy idea of…
On the application of fracture mechanics mixed-mode models of sliding with friction and adhesion
M. Ciavarella
As recently suggested in an interestring and stimulating paper by Menga, Carbone & Dini (MCD), applying fracture mechanics energy concepts for the case of a sliding adhesive contac…
Shear-induced contact area anisotropy explained by a fracture mechanics model
A. Papangelo, J. Scheibert, R. Sahli +2
This paper gives a theoretical analysis for the fundamental problem of anisotropy induced by shear forces onan adhesive contact, discussing the experimental data of the companion L…
Adhesive contact of model randomly rough rubber surfaces
Vito Acito, Michele Ciavarella, Alexis M Prevost +1
We study experimentally and theoretically the equilibrium adhesive contact between a smooth glass lens and a rough rubber surface textured with spherical microasperities with contr…
On stickiness of multiscale randomly rough surfaces
G. Violano, L. Afferrante, A. Papangelo +1
We derive a very simple and effective stickiness criterion for solids having random roughness using a new asymptotic theory, which we validate with that of Persson and Scaraggi and…
The role of adhesion in contact mechanics
M. Ciavarella, J. Joe, A. Papangelo +1
Adhesive [e.g. van der Waals] forces were not generally taken into account in contact mechanics until 1971, when Johnson, Kendall and Roberts (JKR) generalized Hertz' solution for…
On mixed-mode fracture mechanics models for contact area reduction under shear load in soft materials
A. Papangelo, M. Ciavarella
The fundamental problem of friction in the presence of macroscopic adhesion, as in soft bodies, is receiving interest from many experimentalists. Since the first fracture mechanics…
An approximate JKR solution for a general contact, including rough contacts
M. Ciavarella
In the present note, we suggest a simple closed form approximate solution to the adhesive contact problem under the so-called JKR regime. The derivation is based on generalizing th…
On Pastewka & Robbins' criterion for macroscopic adhesion of rough surfaces
M. Ciavarella
Pastewka & Robbins (PNAS, 111(9), 3298-3303, 2014) recently have proposed a criterion to distinguish when two surfaces will stick together or not, and suggested it shows a large co…
Fracture Mechanics implications for apparent static friction coefficient in contact problems involving slip-weakening laws
A. Papangelo, M. Ciavarella, J. R. Barber
We consider the effect of differing coefficients of static and dynamic friction coefficients on the behaviour of contacts involving microslip. The classic solutions of Cattaneo and…