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Article Dans Une Revue Polymer Testing Année : 2020

Tensile mechanics of polymeric foam ribbons

Yacine Khidas
Xavier Chateau
Jean-Yvon Faou
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Olivier Pitois


Whereas size reduction that accompanies new technologies calls for more complex and more constrained shapes for foams to be used as seals, ribbons or surface coatings, little is known about the mechanics of foam systems characterized by a potentially small number of pores across their thickness and possessing parietal or free surface pore layers. Elastic stiffness and rupture stress have been measured for open-cell foam ribbons produced thanks to a method allowing to tune finely and independently several crucial parameters: ribbon thickness, pore size and solid volume fraction. Results reveal that the longitudinal elastic stiffness of foam ribbons increases significantly as the number of pores across the ribbon thickness decreases within the range 1-10. This increase is understood through the contribution of the parietal layers with respect to the bulk layers. Similarly, rupture stress of foam ribbons characterized by narrow pore size distributions increases as a function of the ratio pore size/ribbon thickness. All others things being equal, the rupture stress is smaller polydisperse samples compared to monodisperse samples.
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Dates et versions

hal-02883731 , version 1 (29-06-2020)



Aymeric Mouquet, Yacine Khidas, Xavier Chateau, Jean-Yvon Faou, Tamar Saison, et al.. Tensile mechanics of polymeric foam ribbons. Polymer Testing, 2020, 86, pp.106513. ⟨10.1016/j.polymertesting.2020.106513⟩. ⟨hal-02883731⟩
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