The plastic behavior of glasses and disordered solids shows a rich and complex phenomenology, from scale free avalanches to localization of the strain field in shear bands. This complexity has motivated increasing theoretical and numerical efforts in the recent years. In particular, an emergent class of lattice models operating at mesoscopic scale now complements the numerous atomistic simulations of model glasses. While these lattice models that rely on the coupling between a local threshold dynamics and elastic interactions  reproduce most of the phenomenology observed in amorphous plasticity, a quantitative link remains to be done with atomistic sipmulations. Here we use a technique recently developed to characterize local yield stress in atomistic simulations to propose and study the quantitative connection between simulations operating at atomistic and mesocopic scales.

References

B. Tyukodi et al.  From depinning to plastic yielding: A soft modes perspective,
Physical Review E 93, 063005  (2016)

A. Barbot et al. Local Yield Sress Statistics in Model Amorphous Solids, Phys. Rev. E 97 033001 (2018)