Periodic training of creeping solids.
basic_science · Level V
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- Record sourced from PubMed, PMID 33257582.
- Also identified by DOI 10.1073/pnas.1922847117 and PMC identifier 7749283.
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Abstract
We consider disordered solids in which the microscopic elements can deform plastically in response to stresses on them. We show that by driving the system periodically, this plasticity can be exploited to train in desired elastic properties, both in the global moduli and in local "allosteric" interactions. Periodic driving can couple an applied "source" strain to a "target" strain over a path in the energy landscape. This coupling allows control of the system's response, even at large strains well into the nonlinear regime, where it can be difficult to achieve control simply by design.