ISSN:
1082-5010
Schlagwort(e):
finite element method
;
viscous constitutive equations
;
time-discrete scheme
;
stability
;
superstability
;
Engineering
;
Civil and Mechanical Engineering
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Architektur, Bauingenieurwesen, Vermessung
,
Maschinenbau
Notizen:
The general framework of the paper deals with the finite element modelling of mechanical problems involving viscous materials such as bitumen or bituminous concrete. Its aim is to present a second-order-accurate discrete scheme which remains unconditionally superstable when used for the time discretization of the linear and non-linear viscoelastic constitutive equations considered. After stating the space- and time-continuous mechanical problem we focus on the time discretization of these equations, considering three different schemes. For both of them sufficiently small values of the time step are required in order to ensure the superstability, whereas the third remains unconditionally superstable. Eventually, some numerical results are presented. © 1998 John Wiley & Sons, Ltd.
Zusätzliches Material:
4 Ill.
Materialart:
Digitale Medien
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