64 citations · 295 across the 28 of their papers we have counts for
27 papers
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…
Strain incompatibility as a source of residual stress in welding and additive manufacturing
Domenico Zaza, Michele Ciavarella, Giuseppe Zurlo
The accumulation of residual stress during welding and additive manufacturing is an important effect that can significantly anticipate the workpiece failure. In this work we exploi…
Comments on old and recent experiments of "stickiness" of a soft solid to a rough hard surface
Michele Ciavarella
The old asperity model of Fuller and Tabor had demonstrated almost 50 years ago surprisingly good correlation with respect to quite a few experiments on the pull-off decay due to r…
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…
The false myth of the rise in self-citations, and the impressively positive effect of bibliometric evaluations on the increase of the impact of Italian research
Pietro D'Antuono, Michele Ciavarella
It has recently been claimed by Baccini and coauthors that due to ANVUR's bibliometric evaluations of individuals, departments, and universities, in Italy there has been a surge in…
Mean stress effect on Gaßner curves interpreted as shifted Wöhler curves
Pietro D'Antuono, Michele Ciavarella
A criterion for the mean stress effect correction in the shift factor approach for variable amplitude life prediction is presented for both smooth and notched specimens. The criter…
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…
A comment on "A dimensionless measure for adhesion and effects of the range of adhesion in contacts of nominally flat surfaces" by M. H. Muser
Michele Ciavarella
letter to the Editor of Trib.Int.
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…
A simplified version of Persson's multiscale theory for rubber friction due to viscoelastic losses
Michele Ciavarella
We show the full multiscale Persson's theory for rubber friction due to viscoelastic losses can be approximated extremely closely to simpler models, like that suggested by Persson…
On the use of DMT approximations in adhesive contacts, with remarks on random rough contacts
Michele Ciavarella
The contact between rough surfaces with adhesion is an extremely difficult problem, and the approximation of the DMT theory (to neglect deformations due to attractive forces), orig…
Adhesion of surfaces with wavy roughness and a shallow depression
Michele Ciavarella, Antonio Papangelo
Recently, a simple and elegant "dimple" model was introduced by McMeeking et al. (Adv Eng Mat 12(5), 389-397, 2010) to show a mechanism for a bistable adhesive system involving a s…
On the effect of wear on asperity heigth distributions, and the corresponding effect in the mechanical response
M. Ciavarella
Since the time of the original Greenwood & Williamson paper, it was noticed that abrasion and wear lead to possibly bimodal distribution of asperity height distribution, with the u…
On the significance of asperity models predictions of rough contact with respect to recent alternative theories
M. Ciavarella
Recently, it has been shown that while asperity models show correctly qualitative features of rough contact problems (linearity in area-load, negative exponential dependence of loa…
A note on the possibility of roughness enhancement of adhesion in Persson's theory
M. Ciavarella
In an attempt to model the observed enhancement of adhesion in some classical experiments in the 1970-1980's, Persson introduced in his theory of adhesion between rough solids a te…
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…
A random process asperity model for adhesion
M. Ciavarella
A simple asperity model using random process theory is developed in the presence of adhesion. Using the DMT model for each individual asperity, and asymptotic results at large sepa…