Overcoming the adhesion paradox and switchability conflict on rough surfaces with shape-memory polymers

C Linghu, Y Liu, YY Tan, JHM Sing… - Proceedings of the …, 2023 - National Acad Sciences
Smart adhesives that can be applied and removed on demand play an important role in
modern life and manufacturing. However, current smart adhesives made of elastomers suffer …

[HTML][HTML] How does roughness kill adhesion?

L Afferrante, G Violano, D Dini - Journal of the Mechanics and Physics of …, 2023 - Elsevier
It is well-known that adhesion is strongly influenced by surface roughness. Nevertheless, the
literature currently contains an ongoing debate regarding which roughness scales are …

[HTML][HTML] On the contact between elasto-plastic media with self-affine fractal roughness

G Violano, L Afferrante - International Journal of Mechanical Sciences, 2023 - Elsevier
Modeling the elasto-plastic contact between rough interfaces may require high
computational effort as real surfaces present broad roughness spectra. In this work, we …

Size-Dependent Effects and Surface Roughness in Contact Mechanics

C Li, X Liang, W Yuan, Y Ding… - Applied …, 2025 - asmedigitalcollection.asme.org
With the increasing miniaturization of mechanical systems and the prevalence of rough
surfaces in engineering applications, understanding and accurately characterizing the …

Exploring the dynamics of viscoelastic adhesion in rough line contacts

L Afferrante, G Violano, G Carbone - Scientific Reports, 2023 - nature.com
Modeling the adhesion of viscoelastic rough surfaces is a recent challenge in contact
mechanics. Existing models have primarily focused on simple systems with smooth …

Rate-dependent adhesion of viscoelastic contacts, Part I: Contact area and contact line velocity within model randomly rough surfaces

G Violano, A Chateauminois, L Afferrante - Mechanics of Materials, 2021 - Elsevier
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-asperities …

On stickiness of multiscale randomly rough surfaces

G Violano, L Afferrante, A Papangelo… - The journal of …, 2021 - Taylor & Francis
ABSTRACT A new stickiness criterion for solids having random fractal roughness is derived
using Persson's theory with DMT-type adhesion. As expected, we find that stickiness, ie. the …

Modeling the adhesive contact of rough soft media with an advanced asperity model

G Violano, L Afferrante - Tribology Letters, 2019 - Springer
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 …

The adhesion of viscoelastic bodies with slightly wave surfaces

L Afferrante, G Violano - Tribology International, 2022 - Elsevier
Adhesive contact of viscoelastic bodies is a challenging problem due to its rate-dependent
nature. In this work, we formulate a theoretical model to describe the pulling process of a …

The effects of humidity on the adhesion of pharmaceutical excipients to steel surfaces

C Stevenson, J Monroe, JM Vazquez, O Jones… - Powder Technology, 2024 - Elsevier
The adhesion between powders and surfaces is influenced by their topography. We
investigate the relationships between the topography on stainless steel, the humidity, and …