Instability patterns of rolling up a sleeve appear more intricate than the ones of walking over
a rug on floor, both characterized as systems of uniaxially compressed soft film on stiff …

The morphology of an elastic strip subject to vertical compressive stress on a frictional rigid
substrate is investigated by a combination of theory and experiment. We find a rich variety of …

Everyday experience confirms the tendency of adhesive films to detach from spheroidal
regions of rigid substrates—what is a petty frustration when placing a sticky band aid onto a …

The ripplocation is a crystallographic defect which is unique to layered materials, combining
nanoscale delamination with the crystallographic slip of a basal dislocation. Here, we have …

Compressing a thin film adhered to a substrate can yield delaminated blisters, if the interface
adhesion is relatively weak. In this work, through the combination of theoretical modeling …

Confined thin surfaces may wrinkle as a result of the growth of excess material. Elasticity or
gravity usually sets the wavelength. We explore new selection mechanisms based on …

Bacillus spores are highly resistant dormant cells formed in response to starvation. The
spore is surrounded by a structurally complex protein shell, the coat, which protects the …

We consider the familiar problem of a bump, or ruck, in a rug. Under lateral compression, a
rug bends to form a ruck—a localized region in which it is no longer in contact with the floor …

The paper proposes a method to analyze the post-buckling response of a planar elastica
subjected to unilateral constraints. The method rests on assuming a deformed shape of the …

We investigate the deformation of a thin elastic sheet floating on a liquid surface and subject
to a uniaxial compression. We show that at a critical compression the sheet delaminates …