An open-source ABAQUS implementation of the scaled boundary finite element method to study interfacial problems using polyhedral meshes

The scaled boundary finite element method (SBFEM) is capable of generating polyhedral elements with an arbitrary number surfaces. This salient feature significantly alleviates the meshing burden being a bottleneck in analysis pipeline standard (FEM). In this paper, we implement based on SBFEM into commercial software ABAQUS. To end, user are provided through subroutine UEL. Detailed explanations regarding data structures and implementational aspects procedures given. focus current implementation interfacial problems therefore, element-based surfaces created to establish interactions. achieved by overlay negligible stiffness, ABAQUS library, elements. By means several numerical examples, advantages treatment non-matching interfaces automatic mesh generation clearly demonstrated. Thus, performance for involving augmented availability meshes. Due elements, can directly handle complex geometries given form digital images or stereolithography (STL) files. order facilitate use proposed approach, code UEL published open-source be downloaded from https://github.com/ShukaiYa/SBFEM-UEL.