74 citations · 159 across the 13 of their papers we have counts for
12 papers · 1 filter
Theory of fracture initiation and propagation in viscoelastic media
Giuseppe Carbonea, Cosimo Mandriotab, Guido Violanob +2
Crack initiation and propagation are fundamental problems in materials science, often leading to catastrophic failure. While fracture in elastic solids occurs instantaneously above…
Finite deformations induce friction hysteresis in normal wavy contacts
M. Ceglie, G. Violano, L. Afferrante +1
Since Hertz's pioneering work in 1882, contact mechanics traditionally grounds on linear elasticity, assuming small strains and displacements. However, recent experiments clearly h…
Role of viscoelasticity in the adhesion of mushroom-shaped pillars
Guido Violano, Savino Dibitonto, Luciano Afferrante
Mushroom-shaped pillars have been extensively studied for their superior adhesive properties, often drawing inspiration from natural attachment systems observed in insects. Typical…
Adhesive contact mechanics of bio-inspired pillars: exploring hysteresis and detachment modes
Guido Violano, Savino Dibitonto, Luciano Afferrante
Engineering technologies frequently draw inspiration from nature, as exemplified in bio-inspired adhesive surfaces. These surfaces present textures adorned by pillars, mimicking th…
On the long and short-range adhesive interactions in viscoelastic contacts
Guido Violano, Luciano Afferrante
Recently, tribologists have shown increasing interest in rate-dependent phenomena occurring in viscoelastic fractures. However, in some cases, conflicting results are obtained desp…
Size effects in adhesive contacts of viscoelastic media
Guido Violano, Luciano Afferrante
Is the maximum force required to detach a rigid sphere from a viscoelastic substrate dependent on the initial value of the contact radius? Experimental and theoretical investigatio…
On the effective surface energy in viscoelastic Hertzian contacts
Luciano Afferrante, Guido Violano
Viscoelasticity and rate-dependent adhesion of soft matter lead to difficulties in modeling the 'relatively simple' problem of a rigid sphere in contact with a viscoelastic half-sp…
Rate-dependent adhesion of viscoelastic contacts. Part II: numerical model and hysteresis dissipation
Guido Violano, Antoine Chateauminois, Luciano Afferrante
In this paper, we propose a numerical model to describe the adhesive normal contact between a "rigid" spherical indenter and a viscoelastic rough substrate. The model accounts for…
Rate-dependent adhesion of viscoelastic contacts. Part I: contact area and contact line velocity within model multi-asperity contacts with rubber
Guido Violano, Antoine Chateauminois, Luciano Afferrante
In this work, we investigate dissipative effects involved during the detachment of a smooth spherical glass probe from a viscoelastic silicone substrate patterned with micro-asperi…
Modeling the adhesive contact of rough soft media with an advanced asperity model
Guido Violano, Luciano Afferrante
Adhesive interactions strongly characterize the contact mechanics of soft bodies as they lead to large elastic deformations and contact instabilities. In this paper, we extend the…
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…
Non-linear double-peeling: experimental vs. theoretical predictions
D. Misseroni, L. Afferrante, G. Carbone +1
The double peeling of detachment of non-linear adhesive tapes from a flat Poly(methylmethacrylate) (PMMA) surface has been investigated from both experimental and theoretical point…