[Adhesive contact and kinetics of adherence between a rigid flat-ended cone and a soft elastomeric body]
The equilibrium contact and the kinetics of adherence, at an imposed applied load, of a rigid flat-ended cone in contact with the flat and smooth surface of a soft elastomer sample (unfilled natural rubber) are examined with the help of fracture mechanics concepts. The variation of the dissipation function Φ=(G−w)/w, where G is the strain energy release rate and w the Dupré energy of adhesion, is studied as a function of the crack propagation speed V at the interface between the flat-ended rigid cone and the elastic solid. As expected, a master curve Φ(V) is found, confirming the variation of Φ as the 0.55 power function of V, as recently established by Barquins et al. in adherence experiments, with the same rubber-like material.
L'équilibre et la cinétique de décollement, à charge imposée, d'un tronc de cône rigide, en contact avec la surface plane et lisse d'un massif d'élastomère souple, sont étudiés à partir des concepts de la mécanique de la rupture. La variation de la fonction de dissipation viscoélastique Φ=(G−w)/w, où G est le taux de restitution de l'énergie mécanique et w l'énergie d'adhésion de Dupré, est examinée en fonction de la vitesse d'avance V du bord de la zone circulaire de contact assimilé à un front de fissure. La variation de Φ en fonction de la puissance 0,55 de la vitesse V est retrouvée, confirmant ainsi la loi établie lors de récentes expériences d'adhérence réalisées par Barquins et al. avec le même élastomère (caoutchouc naturel non chargé).
Revised:
Published online:
Keywords: adhesion tests, fracture mechanics, kinetics of adherence
Stéphane Bouissou 1; Michel Barquins 2
@article{CRPHYS_2002__3_2_239_0,
author = {St\'ephane Bouissou and Michel Barquins},
title = {Adh\'esion et cin\'etique de d\'ecollement d'un c\^one rigide tronqu\'e en contact avec un \'elastom\`ere souple},
journal = {Comptes Rendus. Physique},
pages = {239--245},
publisher = {Elsevier},
volume = {3},
number = {2},
year = {2002},
doi = {10.1016/S1631-0705(02)01303-8},
language = {fr},
}
TY - JOUR AU - Stéphane Bouissou AU - Michel Barquins TI - Adhésion et cinétique de décollement d'un cône rigide tronqué en contact avec un élastomère souple JO - Comptes Rendus. Physique PY - 2002 SP - 239 EP - 245 VL - 3 IS - 2 PB - Elsevier DO - 10.1016/S1631-0705(02)01303-8 LA - fr ID - CRPHYS_2002__3_2_239_0 ER -
Stéphane Bouissou; Michel Barquins. Adhésion et cinétique de décollement d'un cône rigide tronqué en contact avec un élastomère souple. Comptes Rendus. Physique, Volume 3 (2002) no. 2, pp. 239-245. doi : 10.1016/S1631-0705(02)01303-8. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/S1631-0705(02)01303-8/
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