Abstract Recently, tribologists have shown increasing interest in rate-dependent phenomena occurring viscoelastic fractures. However, some cases, conflicting results are obtained despite the use of similar theoretical models. For this reason, we try to shed light on effects that long and short-range adhesion has pull-off force contact media by exploiting a recently developed numerical model. We...

Abstract We study the influence of rubber transfer films on sliding friction between rectangular blocks and a concrete surface. present experimental results for coefficient compound surface contaminated by another compound, two different pairs (A, B) (C, D) compounds. For same compounds, we theory which illustrate relative importance viscoelastic adhesive contribution to friction. correlate cal...

The debonding of Pressure Sensitive Adhesives (PSA) is a classical example of the difficult and unsolved issue of fracture in soft viscoelastic confined materials. The presence of a complex debonding region where the adhesive undergoes cavitation and the very large strain of a spontaneously formed fibrillar network has defied many modeling attempts over the past 70 years. We present here a nove...

Abstract In this study, we consider the nonlinear viscoelastic–viscoplastic behavior of adhesive films in scarf joints. We develop a three-dimensional model, which combines viscoelastic model with viscoplastic using von Mises yield criterion and kinematic hardening. implement an iterative scheme for solution numerical algorithm stress correction combined into finite element analysis. The compon...

This work presents an experimental analysis of the friction response ice-rubber interface over five decades sliding velocity and temperature down to − 20 ∘C, combining in-situ contact visualisation simultaneous force measurements. Viscoelastic properties rubber were varied in terms glassy transition elastic modulus. Based on area measurements, adhesive viscoelastic contributions identified. Eve...

The flexibility of insect adhesive pads is crucial for their ability to attach on rough surfaces. Here, we used transparent substrates with micropillars to test in adult cockroaches (Nauphoeta cinerea) whether and how the stiffness of smooth adhesive pads changes when shear forces are applied, and whether the insect's age has any influence. We found that during pulls towards the body, the pad's...

The similarity between the extracellular matrix of soft tissue and hydrogels, characterized by high-water-content viscoelastic polymeric networks, has been sustaining the advancement of hydrogels for tissue engineering and regenerative medicine (TERM) purposes. Current research on hydrogels has focused on introducing cell-adhesive peptides to promote cell adhesion and spreading, a critical appl...

AIM To study the viscoelastic properties of human hepatocytes and hepatocellular carcinoma (HCC) cells under cytoskeletal perturbation, and to further to study the viscoelastic properties and the adhesive properties of mouse hepatoma cells (HTC) in different cell cycle. METHODS Micropipette aspiration technique was adopted to measure viscoelastic coefficients and adhesion force to collagen co...