Presentation Details
A phase field model for porous plastic solids at ductile fracture
Thursday, 12 Oct 2017; 17:00 - 17:20 in room 7.11
In Session:
MS10-1: Mechanics of Dissipative Solids: Plasticity, Fracture and Damage (Show complete Mini Symposium)
Thursday, 12 Oct 2017; 16:00 - 18:00 in room 7.11
Show complete Session
1st and presenting Author
Daniel Kienle
Institute of Applied Mechanics (CE)
University of Stuttgart
Stuttgart, Germany
Institute of Applied Mechanics (CE)
University of Stuttgart
Stuttgart, Germany
2nd Author
Fadi Aldakheel
Institute of Continuum Mechanics
Leibniz Universität Hannover
Hannover, Germany
Institute of Continuum Mechanics
Leibniz Universität Hannover
Hannover, Germany
3rd Author
Stephan Teichtmeister
Institute of Applied Mechanics (CE)
University of Stuttgart
Stuttgart, Germany
Institute of Applied Mechanics (CE)
University of Stuttgart
Stuttgart, Germany
4th Author
Christian Miehe
Institute of Applied Mechanics (CE)
University of Stuttgart
Stuttgart, Germany
Institute of Applied Mechanics (CE)
University of Stuttgart
Stuttgart, Germany
Micro Abstract:
This work outlines a variational framework for the phase field modeling of fracture in porous plastic solids. The phase field regularizes sharp crack surfaces by a specific gradient damage formulation. A model for porous plasticity with a growth law for the evolution of the void fraction is developed and linked to a failure criterion in terms of the elastic-plastic work density. It is shown that this approach is able to model basic phenomena of ductile failure such as cup-cone failure surfaces.