Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7168637 | Engineering Fracture Mechanics | 2018 | 28 Pages |
Abstract
We present a strategy which allows to implement a fully coupled, gradient-enhanced damage law into commercial FEM-codes with little effort. This enables a robust simulation of practical engineering problems avoiding spurious mesh dependency due to damage influence. The method is applied to a model for shear dominated, ductile damage of metals, which is used by engineers and often available in its local formulation within FEM-programs; e.g., ABAQUS. The model consists of a damage initiation criterion, followed by a damage evolution law which is coupled to the elastic-plastic constitutive equations. Convergence studies show the applicability of the implementation for 2D and 3D boundary value problems. Crack growth simulations of a benchmark problem show reasonable results compared to similar approaches from literature.
Related Topics
Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
Andreas Seupel, Geralf Hütter, Meinhard Kuna,