An adaptive multiscale quasicontinuum approach for mechanical simulations of elastoplastic periodic lattices

The quasicontinuum method is a multiscale that combines locally supported coarse-grained domains, with small regions in which the microstructural model fully resolved. This contribution proposes first adaptive formulation of for elastoplasticity. uses an elastoplastic beam description. indicator refinement occurrence plastic deformation, such plasticity can only occur resolved regions. An illustrative numerical example scratch test Kelvin lattice demonstrates capabilities resulting framework.