A Coupling Scheme of Dual-Horizon Non-ordinary State-based Peridynamics and FEM for Plates
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This paper presents a coupling scheme between dual-horizon non-ordinary state-based peridyanmics [1] and the finite element method for fracture simulation of plates. Concretely, kinematic assumptions of the Reissner-Mindlin plate model are considered, and the proposed coupling approach employs the weak forms of both peridynamics and finite element method. This enable the efficient coupling without the overlapping zones at interfaces between peridynamics and finite element domains [2]. For fracture simulation of plates, the portion with expected crack propagation is discretized by using peridynamics, whereas the remaining portions are discretized with conventional finite element mesh. In other words, the crack propagation is only carried out in the peridynamic domain, whereas the finite element domain remains intact during the analysis. This implementation is advantageous to improve the computational time. Fig 1 exhibits some preliminary results for a circular plate with irregular finite element meshes and distribution of particles.
