2D and 3D Modelling of Geomaterials Using a Second Gradient Dilation Model

被引：1

作者：

Fernandes, R. ^{[1
]}

Ducoin, B. ^{[1
]}

Chambon, R. ^{[2
]}

机构：

[1] EDF R&D, LAMSID, 1 Ave Gnral De Gaulle, F-92140 Clamart, France

[2] Univ Grenoble, Lab 3S R, F-38041 Grenoble, France

来源：

ADVANCES IN BIFURCATION AND DEGRADATION IN GEOMATERIALS | 2011年

关键词：

Second gradient; Dilation; 3D; FEM; Geomaterials; LOCALIZATION;

D O I：

10.1007/978-94-007-1421-2_27

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

This paper deals with some recent results obtained with a simplified second gradient model to simulate localized patterns. The simplification is based on the use of the gradient of the volume variation only. It is first shown that this model is very efficient since it is less time consuming than a classical one. Consequently, such a model can be useful for 3-D computations. Finally some results show once more that even for 3-D computations, enhanced models such as second gradient ones do not restore the mathematical well posedness of the initial boundary value problem.

引用

页码：209 / 218

页数：10

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