Presentation Details
A mixed isogeometric collocation method for rate-independent elastoplasticity
Thursday, 12 Oct 2017; 10:50 - 11:10 in room 7.01
In Session:
MS15-3: Non-standard Formulations and Discretization Methods for Thin-walled Structures (Show complete Mini Symposium)
Thursday, 12 Oct 2017; 10:30 - 12:30 in room 7.01
Show complete Session
1st and presenting Author
Frederik Fahrendorf
Institute of Applied Mechanics
Technical University of Braunschweig
Braunschweig, Germany
Institute of Applied Mechanics
Technical University of Braunschweig
Braunschweig, Germany
2nd Author
Laura De Lorenzis
Institute of Applied Mechanics
Technical University of Braunschweig
Braunschweig, Germany
Institute of Applied Mechanics
Technical University of Braunschweig
Braunschweig, Germany
Micro Abstract:
We present a mixed isogeometric collocation method for rate-independent elastoplasticity at small strains. In the proposed approach, both stress and displacement fields are approximated as primary variables. An isotropic hardening rule is implemented and the elastoplastic constitutive equations are integrated in time via a classical return-mapping algorithm. Various numerical examples of plane strain elastoplasticity are investigated and compared to reference solutions.