A DAE approach for solving the elasto-plastic boundary value problem
Författare
Summary, in English
In this study an alternative integration scheme for elasto-plasticity based on a Diagonal Implicit Runge-Kutta (DIRK) scheme originally proposed by Ellsiepen (1999) is investigated. In contrast to clasical approaches, the DIRK scheme is applied to the balance of momentum as well as the constitutive evolution equations. The presented numerical algorithm is applied to an elastoplastic
bounadry value problem and the examples reveal that a significant increase in accuracy can be obtained at virtually no cost using the DIRK scheme.
bounadry value problem and the examples reveal that a significant increase in accuracy can be obtained at virtually no cost using the DIRK scheme.
Avdelning/ar
Publiceringsår
2012
Språk
Engelska
Dokumenttyp
Konferensbidrag
Ämne
- Mechanical Engineering
Nyckelord
- Differential Algebraic Equation
- DAE
- DIRK
- Elasto-Plasticity
- Finite strains
- Damage
Conference name
Nordic Seminar On Computional Mechanics
Conference date
2011-11-03 - 2011-11-04
Conference place
Helsingfors, Finland
Status
Published