Nonmonotonic Aging and Memory Retention in Disordered Mechanical Systems.


We observe nonmonotonic aging and memory effects, two hallmarks of glassy dynamics, in two disordered mechanical systems: crumpled thin sheets and elastic foams. Under fixed compression, both systems exhibit monotonic nonexponential relaxation. However, when after a certain waiting time the compression is partially reduced, both systems exhibit a… (More)
DOI: 10.1103/PhysRevLett.118.085501

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