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- Title
A comparison of structure-preserving integrators for discrete thermoelastic systems.
- Authors
Krüger, M.; Groß, M.; Betsch, P.
- Abstract
This paper contains a comparison of three recently proposed structure-preserving time-stepping schemes for nonlinear thermomechanical systems. These schemes can be considered as extension to coupled thermoelastic problems of well-established energy-momentum schemes for nonlinear elastodynamics. The present comparison is performed in the context of a finite-dimensional model problem for coupled thermomechanical systems: the thermoelastic double pendulum. It is shown that, similar to their purely mechanical ancestors, structure-preserving integrators for coupled thermoelasticity in general exhibit superior numerical stability and robustness properties.
- Subjects
THERMOELASTICITY; CONSERVATION laws (Mathematics); NONLINEAR theories; SPECIAL relativity (Physics); DOUBLE pendulums; NUMERICAL analysis; TRANSIENTS (Dynamics); MATHEMATICAL physics
- Publication
Computational Mechanics, 2011, Vol 47, Issue 6, p701
- ISSN
0178-7675
- Publication type
Article
- DOI
10.1007/s00466-011-0570-0