Energy-momentum consistent algorithms for dynamic thermomechanical problems-Application to mortar domain decomposition problems
An energy‐momentum consistent integrator for non‐linear thermoelastodynamics is newly developed and extended to domain decomposition problems. The energy‐momentum scheme is based on the first law of thermodynamics for strongly coupled, non‐linear thermoelastic problems. In contrast to staggered algo...
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| Veröffentlicht in: | International journal for numerical methods in engineering 2011-06, Vol.86 (11), p.1277-1302 |
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| container_title | International journal for numerical methods in engineering |
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| creator | Hesch, Christian Betsch, Peter |
| description | An energy‐momentum consistent integrator for non‐linear thermoelastodynamics is newly developed and extended to domain decomposition problems. The energy‐momentum scheme is based on the first law of thermodynamics for strongly coupled, non‐linear thermoelastic problems. In contrast to staggered algorithms, a monolithic approach, which solves the mechanical as well as the thermal part simultaneously, is introduced. The approach is thermodynamically consistent in the sense that the first law of thermodynamics is fulfilled. Furthermore, a domain decomposition method for the thermoelastic system is developed based on previous developments in the context of the mortar method. The excellent performance of the new approach is illustrated in representative numerical examples. Copyright © 2011 John Wiley & Sons, Ltd. |
| doi_str_mv | 10.1002/nme.3095 |
| format | Article |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Algorithms coupled problems Domain decomposition Domain decomposition methods energy momentum Exact sciences and technology Fundamental areas of phenomenology (including applications) Law mortar method Mortars Nonlinearity Numerical analysis Physics Solid mechanics Static elasticity (thermoelasticity...) Structural and continuum mechanics Thermodynamics time integration Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...) |
| title | Energy-momentum consistent algorithms for dynamic thermomechanical problems-Application to mortar domain decomposition problems |
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