Shear-fetched fluctuations in 2D wet foam

In this study, we investigate the behavior of two-dimensional wet foam when it is subjected to shear strain. As a result of their rheological properties, which may range from solid-like to liquid-like, foams are considered elastic when they are subjected to shear strain. In conformational experiments, we show that wet foam topologically reshapes into a parallelogram when confined within a square rubber band cell. We applied a shear strain by dislocating one side of the cell. These results suggest that the changes in the foam are consistent with the occurrence of avalanches of changes in wet foam. With increase in strain and wetness of the cells, disordered wet foams become more ordered.