Phase-field modelling of ductile fracture: a variational gradient-extended plasticity-damage theory and its micromorphic regularization | Zendy

Christian Miehé | Zendy; Stephan Teichtmeister | Zendy; Fadi Aldakheel | Zendy

Open Access

Phase-field modelling of ductile fracture: a variational gradient-extended plasticity-damage theory and its micromorphic regularization

Author(s) -

Christian Miehé,

Stephan Teichtmeister,

Fadi Aldakheel

Publication year - 2016

Publication title -

philosophical transactions of the royal society a mathematical physical and engineering sciences

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.074

H-Index - 169

eISSN - 1471-2962

pISSN - 1364-503X

DOI - 10.1098/rsta.2015.0170

Subject(s) - classification of discontinuities , plasticity , regularization (linguistics) , objectivity (philosophy) , materials science , mechanics , fracture mechanics , fracture (geology) , mathematics , physics , mathematical analysis , computer science , composite material , artificial intelligence , philosophy , epistemology

This work outlines a novel variational-based theory for the phase-field modelling of ductile fracture in elastic–plastic solids undergoing large strains. The phase-field approach regularizes sharp crack surfaces within a pure continuum setting by a specific gradient damage modelling. It is linked to a formulation of gradient plasticity at finite strains. The framework includes two independent length scales which regularize both the plastic response as well as the crack discontinuities. This ensures that the damage zones of ductile fracture are inside of plastic zones, and guarantees on the computational side a mesh objectivity in post-critical ranges.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research