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Investigation of a Phase Field Model for Elasto‐plastic Fracture
Author(s) -
Noll Timo,
Kuhn Charlotte,
Müller Ralf
Publication year - 2016
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201610067
Subject(s) - plasticity , brittle fracture , fracture (geology) , von mises yield criterion , field (mathematics) , phase (matter) , materials science , extension (predicate logic) , work (physics) , mechanics , geotechnical engineering , structural engineering , geology , engineering , computer science , mathematics , physics , finite element method , mechanical engineering , composite material , quantum mechanics , pure mathematics , programming language
Phase field modelling of brittle fracture is very well understood today. However, the attempts of investigation of elasto‐plastic fracture by the phase field approach are limited. This contribution deals with the investigation of a phase field model for elasto‐plastic fracture. Based on a free energy density comprising elastic, fracture and plastic contributions, the model describes an extension of the linear elastic model towards von Mises plasticity. In this work it is analyzed numerically to which extend analytical findings concerning the interpretation of the model parameters in 1D are transferable to 2D scenarios. (© 2016 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)