5 papers
Memories of amplitude and direction coexist and compete in non-Brownian suspensions
Surendra Padamata, Nathan C. Keim
Steadily shearing a non-Brownian suspension forms a memory of direction, while shearing back and forth forms a memory of amplitude. Each memory is evident in the systems response t…
Dynamics of Reversible Plasticity in an Amorphous Solid
Zhicheng Wang, Nathan C. Keim
Local rearrangements are the elements of plastic deformation in an amorphous solid. In oscillatory shear, they can switch reversibly between two distinct configurations. While thes…
Ordered buckling structures in a twisted crimped tube
Pan Dong, Nathan C. Keim, Joseph D. Paulsen
When a ribbon or tube is twisted far enough it forms buckles and wrinkles. Its new geometry can be strikingly ordered, or hopelessly disordered. Here we study this process in a tub…
The mechanical latching memory of an adhesive tape
Sebanti Chattopadhyay, Carys Chase-Mayoral, Nathan Keim
The storage and retrieval of mechanical imprints from past perturbations is a central theme in soft matter physics. Here we study this effect in the partial peeling of an ordinary…
Generalizing multiple memories from a single drive: The hysteron latch
Chloe W. Lindeman, Travis R. Jalowiec, Nathan C. Keim
Far-from-equilibrium systems can form memories of previous deformations or driving. In systems from sheared glassy materials to buckling beams to crumpled sheets, this behavior is…