Nonlocal numerical analyses of strain localisation in dense sand

被引：20

作者：

di Prisco, C ^{[1
]}

Imposimato, S ^{[1
]}

机构：

[1] Politecn Milan, I-20133 Milan, Italy

来源：

MATHEMATICAL AND COMPUTER MODELLING | 2003年 / 37卷 / 5-6期

关键词：

viscoplasticity; strain localisation; numerical analysis;

D O I：

10.1016/S0895-7177(03)00042-6

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

An already available nonassociated elastoviscoplastic constitutive model with anisotropic strain hardening is modified by following the nonlocal approach in order to describe the spatiotemporal evolution of strain localisation in dense sand media. Both one- and two-dimensional cases are numerically analysed: a nonhomogeneous infinitely long dense sand stratum sheared under displacement controlled conditions and a homogeneous dense sand specimen loaded in biaxial conditions. The former is solved by means of a finite difference algorithm, the latter by means of a finite element code. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：497 / 506

页数：10

共 18 条

[1]

Aifantis EC, 1999, INT J NUMER ANAL MET, V23, P973, DOI 10.1002/(SICI)1096-9853(19990825)23:10<973::AID-NAG20>3.0.CO

[2]

2-M

[3] Void ratio evolution inside shear bands in triaxial sand specimens studied by computed tomography [J].

Desrues, J ;

Chambon, R ;

Mokni, M ;

Mazerolle, F .

GEOTECHNIQUE, 1996, 46 (03) :529-546

[4] A visco-plastic constitutive model for granular soils modified according to non-local and gradient approaches [J].

di Prisco, C ;

Imposimato, S ;

Aifantis, EC .

INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS, 2002, 26 (02) :121-138

[5]

di Prisco C., 1996, MECH COHES-FRICT MAT, V1, P45, DOI DOI 10.1002/(SICI)1099-1484(199601)1:1<45::AID-CFM3>3.0.C0

[6]

2-0

[7]

DIPRISCO C, 1993, MODERN APPROACHES TO PLASTICITY, P83

[8]

DIPRISCO C, 1993, THESIS ITALY

[9]

Imposimato S., 1999, P 7 INT S PLAST 99 C, P557

[10]

IMPOSIMATO S, 1998, THESIS POLITECNICO M

← 1 2 →