[1] Chalmers, Dept Solid Mech, S-41296 Gothenburg, Sweden
来源:
DEVELOPMENTS IN THEORETICAL GEOMECHANICS
|
2000年
关键词:
adaptivity;
error estimate;
fem;
poroelasticity;
D O I:
暂无
中图分类号:
P5 [地质学];
学科分类号:
0709 ;
081803 ;
摘要:
A space-time finite element method for the pore-elasticity problem is outlined. By establishing the appropriate dual problem in space-time, it is possible to establish an exact a posteriori error representation formula based on residuals and the dual solution. In particular, we focus on the error generation in time. An adaptive strategy in the time-domain is proposed, and its performance is investigated with the aid of a numerical example in 2D. In particular, the excellent precision of the error estimate, in terms of the effectivity index being close to unity, is noted.