Presentation Details
On Degradation Functions and Solution Schemes for a Phase Field Model of Elastic-Plastic Fracture
Friday, 13 Oct 2017; 09:30 - 09:50 in room 7.11
In Session:
MS10-2: Mechanics of Dissipative Solids: Plasticity, Fracture and Damage (Show complete Mini Symposium)
Friday, 13 Oct 2017; 08:30 - 10:30 in room 7.11
Show complete Session
1st and presenting Author
Timo Noll
Chair of Applied Mechanics
University of Kaiserslautern
Kaiserslautern, Germany
Chair of Applied Mechanics
University of Kaiserslautern
Kaiserslautern, Germany
2nd Author
Charlotte Kuhn
Computational Mechanics
University of Kaiserslautern
Kaiserslautern, Germany
Computational Mechanics
University of Kaiserslautern
Kaiserslautern, Germany
3rd Author
Ralf Müller
Chair of Applied Mechanics
University of Kaiserslautern
Kaiserslautern, Germany
Chair of Applied Mechanics
University of Kaiserslautern
Kaiserslautern, Germany
Micro Abstract:
A phase field model for elastic-plastic fracture is presented, which is based on an energy functional
composed of an elastic energy contribution, a plastic dissipation potential and an fracture energy. The
coupling of the mechanical fields with the fracture field is modeled by a degradation function. Numerical simulations are presented, where the choice of the degradation
function is investigated and a staggered solution scheme is compared to an also possible monolithic iteration scheme.