Rheological memory effect in aqueous foam - Archive ouverte HAL Access content directly
Journal Articles EPL - Europhysics Letters Year : 1999

Rheological memory effect in aqueous foam

S Cohen-Addad
A Asnacios


We have measured the complex shear modulus G* of aqueous foam before and after applying a strain of the order of the yield strain for a brief period of time. After such a mechanical perturbation we observe transient "strain softening": the real part of G* is smaller than before and as the foam aging process goes on, it slowly relaxes towards the values obtained for quiescent foam. The characteristic time scale of this relaxation increases with the foam age at which the perturbation is applied, following a scaling law.

Dates and versions

hal-00693855 , version 1 (03-05-2012)



Reinhard Höhler, S Cohen-Addad, A Asnacios. Rheological memory effect in aqueous foam. EPL - Europhysics Letters, 1999, 48 (1), pp.93--98. ⟨10.1209/epl/i1999-00119-4⟩. ⟨hal-00693855⟩
37 View
0 Download



Gmail Facebook Twitter LinkedIn More