scholarly journals Interior-point methods for the phase-field approach to brittle and ductile fracture

2021 ◽  
Vol 375 ◽  
pp. 113612
Author(s):  
J. Wambacq ◽  
J. Ulloa ◽  
G. Lombaert ◽  
S. François
Keyword(s):  
Ductile Fracture ◽  
Phase Field ◽  
Interior Point ◽  
Interior Point Methods ◽  
Field Approach

Modeling of Ductile Fracture by a Phase Field Approach

PAMM ◽  
2018 ◽  
Vol 18 (1) ◽  
Author(s):  
Ralf Müller ◽  
Timo Noll ◽  
Charlotte Kuhn
Keyword(s):  
Ductile Fracture ◽  
Phase Field ◽  
Field Approach

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

2016 ◽  
Vol 374 (2066) ◽  
pp. 20150170 ◽  
Author(s):  
C. Miehe ◽  
S. Teichtmeister ◽  
F. Aldakheel
Keyword(s):  
Ductile Fracture ◽  
Phase Field ◽  
Large Strains ◽  
Gradient Plasticity ◽  
Plastic Response ◽  
Field Approach ◽  
Field Modelling ◽  
Damage Modelling ◽  
Sharp Crack ◽  
Damage Theory

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.

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