A new way to see stress — using supercomputers


November 30, 2018



Supercomputer simulations show that at the atomic level, material stress doesn’t behave symmetrically. Widely-used atomic stress formulae significantly underestimate stress near stress concentrators such as dislocation core, crack tip, or interface, in a material under deformation. Supercomputers simulate force interactions of Lennard-Jones perfect single crystal of 240,000 atoms. Study findings could help scientists design new materials such as glass or metal that doesn’t ice up.



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