Shear-Induced Stress Relaxation in a Two-Dimensional Wet Foam

by: John Lauridsen, Michael Twardos, Michael Dennin

Physical Review Letters, Vol. 89, No. 9. (2002), 098303.

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Abstract

We report on experimental measurements of the flow behavior of a wet, two-dimensional foam under conditions of slow, steady shear. The initial response of the foam is elastic. Above the yield strain, the foam begins to flow. The flow consists of irregular intervals of elastic stretch followed by sudden reductions of the stress, i.e., stress drops. We report on the distribution of the stress drops as a function of the applied shear rate. We also comment on our results in the context of various two-dimensional models of foams.

@article{citeulike:2722672, abstract = {We report on experimental measurements of the flow behavior of a wet, two-dimensional foam under conditions of slow, steady shear. The initial response of the foam is elastic. Above the yield strain, the foam begins to flow. The flow consists of irregular intervals of elastic stretch followed by sudden reductions of the stress, i.e., stress drops. We report on the distribution of the stress drops as a function of the applied shear rate. We also comment on our results in the context of various two-dimensional models of foams.}, author = {Lauridsen, John and Twardos, Michael and Dennin, Michael }, citeulike-article-id = {2722672}, doi = {http://dx.doi.org/10.1103/PhysRevLett.89.098303}, journal = {Physical Review Letters}, keywords = {2d, foam, shear}, number = {9}, pages = {098303+}, posted-at = {2008-06-16 00:33:13}, priority = {4}, publisher = {American Physical Society}, title = {Shear-Induced Stress Relaxation in a Two-Dimensional Wet Foam}, url = {http://dx.doi.org/10.1103/PhysRevLett.89.098303}, volume = {89}, year = {2002} }

RIS record

TY - JOUR ID - citeulike:2722672 L3 - citeulike-article-id:2722672 TI - Shear-Induced Stress Relaxation in a Two-Dimensional Wet Foam JF - Physical Review Letters VL - 89 IS - 9 SP - 098303 PB - American Physical Society N2 - We report on experimental measurements of the flow behavior of a wet, two-dimensional foam under conditions of slow, steady shear. The initial response of the foam is elastic. Above the yield strain, the foam begins to flow. The flow consists of irregular intervals of elastic stretch followed by sudden reductions of the stress, i.e., stress drops. We report on the distribution of the stress drops as a function of the applied shear rate. We also comment on our results in the context of various two-dimensional models of foams. KW - 2d KW - foam KW - shear AU - Lauridsen, John AU - Twardos, Michael AU - Dennin, Michael PY - 2002//13/ UR - http://dx.doi.org/10.1103/PhysRevLett.89.098303 ER -

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