Higher‐order energy consistent time integrators for nonlinear thermoviscoelastodynamics
Higher‐order energy consistent time integrators for nonlinear thermoviscoelastodynamics
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用于非线性热粘弹动力学的高阶能量一致时间积分器
DOI:
10.1002/pamm.200700183
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发表时间:
2007
期刊:
影响因子:
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通讯作者:
Betsch P.
中科院分区:
文献类型:
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作者:
Groß M;Betsch P.
An advantage of the temporal fe method is that higher‐order accurate time integrators can be constructed easily. A further important advantage is the inherent energy consistency if applied to equations of motion. The temporal fe method is therefore used to construct higher‐order energy‐momentum conserving time integrators for nonlinear elastodynamics (see Ref. [1]). Considering finite motions of a flexible solid body with internal dissipation, an energy consistent time integration is also of great advantage (see the references [2, 3]). In this paper, we show that an energy consistent time integration is also advantageous for dynamics with dissipation arising from conduction of heat as well as from a viscous material. The energy consistency is preserved by using a new enhanced hybrid Galerkin (ehG) method. The obtained numerical schemes satisfy the energy balance exactly, independent of their accuracy and the used time step size. This guarantees numerical stability. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
DOI:
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发表时间:
2002
期刊:
影响因子:
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作者:
X. Meng;T. Laursen
通讯作者:
T. Laursen
DOI:
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发表时间:
2006
期刊:
影响因子:
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作者:
F. Armero
通讯作者:
F. Armero