Publications
Formulation of nonlocal damage models based on spectral methods for application to complex microstructures
M. Boeff, F. Gutknecht, P. S. Engels, A. Ma, A. Hartmaier.
Engineering Fracture Mechanics, 147, 373-387, (2015)
Abstract
The increasing interest in modelling local deformations and damage evolution within
materials with complex microstructures leads to an increasing demand for efficient numerical
methods. A method designed to study damage evolution within the microstructure
should be able to deal with complex geometries and to capture system sizes that are large
enough to rectify the assumptions made when naming them representative volume
elements (RVEs). We introduce a nonlocal damage model into the framework of a spectral
solver and study initiation and evolution of damage on the microstructural scale, where
regions susceptible to damage are identified.
Keyword(s): nonlocal damage modelling; plasticity; spectral solver; RVE
DOI: 10.1016/j.engfracmech.2015.06.030
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