Presentation Details
Modeling fatigue phenomena with a variational phase-field approach (Keynote)
Thursday, 12 Oct 2017; 16:00 - 16:20 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
Roberto Alessi
Department of Mathematics
Sapienza University of Rome
Rome, Italy
Department of Mathematics
Sapienza University of Rome
Rome, Italy
2nd Author
Marreddy Ambati
Institute of Applied Mechanics
Technical University of Braunschweig
Braunschweig, Germany
Institute of Applied Mechanics
Technical University of Braunschweig
Braunschweig, Germany
3rd Author
Laura De Lorenzis
Institute of Applied Mechanics
Technical University of Braunschweig
Braunschweig, Germany
Institute of Applied Mechanics
Technical University of Braunschweig
Braunschweig, Germany
4th Author
Stefano Vidoli
Department of Structural and Geotechnical Engineering
Sapienza University of Rome
Rome, Italy
Department of Structural and Geotechnical Engineering
Sapienza University of Rome
Rome, Italy
Micro Abstract:
Fatigue is a key phenomenon in mechanics and is responsible for most of structural failures. Nevertheless, the development of reliable mathematical fatigue models is still an open issue. In this work we present, step-by-step, a new variational phase-field model able to account for fatigue effects. As a strain history variable increases, on which the model relies on, the material fracture toughness is reduced, such to favour cracks where the highest strain variations have occurred.