Zobrazeno 1 - 10
of 461
pro vyhledávání: '"A Chateauminois"'
The creep behavior of an amorphous poly(etherimide) (PEI) polymer is investigated in the vicinity of its glass transition in a weakly non linear regime where the acceleration of the creep response is driven by local configurational rearrangements. Fr
Externí odkaz:
http://arxiv.org/abs/2412.08664
Friction experiments were conducted on hydrogel thin films sliding against a rigid sphere in a low velocity regime where molecular adsorption at the sliding interface sets the friction force, through a dissipative adsorption-stretching-desorption mec
Externí odkaz:
http://arxiv.org/abs/2412.06363
We mimic the mechanical response of touch mechanoreceptors by that of a gas cavity embedded in an elastic semi-cylinder, as a fingertip analogue. Using tribological experiments combined with optical imaging, we measure the dynamics and deformation of
Externí odkaz:
http://arxiv.org/abs/2412.04024
Autor:
Ciapa, Lola, Olanier, Ludovic, Tran, Yvette, Frétigny, Christian, Chateauminois, Antoine, Verneuil, Emilie
Publikováno v:
Soft Matter (2024) 20, 5933-5944
We report on the frictional properties of thin ($\approx \mu m$) poly(dimethylacrylamide) hydrogel films within contacts with spherical silica probes. In order to focus on the contribution to friction of interfacial dissipation, a dedicated rotationa
Externí odkaz:
http://arxiv.org/abs/2407.07819
The creep behavior of an amorphous poly(etherimide) (PEI) polymer is investigated in the vicinity of its glass transition in a weakly non linear regime where the acceleration of the creep response is driven by local configurational rearrangements. Fr
Externí odkaz:
http://arxiv.org/abs/2403.00355
Autor:
Augustine, Anusree, Gauthier, Nicolas, Veillerot, Marc, Zhu, Banguuo, Hui, Chung-Yuen, Tran, Yvette, Verneuil, Emilie, Chateauminois, Antoine
Publikováno v:
Soft Matter 19 (2023) 5169-5178
We report on the delamination of thin ($\approx \mu$m) hydrogel films grafted to silicon substrates under the action of swelling stresses. Poly(dimetylacrylamide) (PDMA) films are synthesized by simultaneously cross-linking and grafting preformed pol
Externí odkaz:
http://arxiv.org/abs/2306.16166
We report on memory effects involved in the transient frictional response of a contact interface between a silicone rubber and a spherical glass probe when it is perturbed by changes in the orientation of the driving motion or by velocity steps. From
Externí odkaz:
http://arxiv.org/abs/2107.05281
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 dissipative process under the assumption that viscoelastic losses are
Externí odkaz:
http://arxiv.org/abs/2012.07799
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. As a baseline, the pull-off of a single asperity, millimeter-siz
Externí odkaz:
http://arxiv.org/abs/2012.07779
Publikováno v:
soft Matter 2020
We report on the transient frictional response of contacts between a rigid spherical glass probe and a micrometer-thick poly(dimethylacrylamide) hydrogel film grafted onto a glass substrate when a lateral relative motion is applied to the contact ini
Externí odkaz:
http://arxiv.org/abs/2004.06362