This paper proposes a three-dimensional meshfree method for arbitrary crack
initiation and propagation that ensures crack path continuity for non-linear
material models and cohesive laws. The method is based on a local partition of
unity. An extrinsic enrichment of the meshfree shape functions is used with
discontinuous and near-front branch functions to close the crack front and
improve accuracy.... hiện toàn bộ
Peridynamic models are derived by assuming that a material point is located in
the bulk. Near a surface or boundary, material points do not have a full
non-local neighborhood. This leads to effective material properties near the
surface of a peridynamic model to be slightly different from those in the bulk.
A number of methods/algorithms have been proposed recently for correcting this
peridynamic ... hiện toàn bộ