Advanced analysis of pipe/soil interaction accounting for strain localization
Kenton Pike, Shawn Kenny, Bipul Hawlader
In the proceedings of: GeoMontréal 2013: 66th Canadian Geotechnical Conference; 11th joint with IAH-CNCSession: Cold Regions II
ABSTRACT: Advanced simulation tools with suitable capabilities for large deformation geomechanics must account for realistic soil behaviour. The coupled Eulerian-Lagrangian (CEL) method available in Abaqus/Explicit allows severe soil deformations, can be utilized with user defined constitutive behavior and scales well with respect to parallel processing simulation times. The CEL method (and other methods) is applied in this study to simulate pipe/soil interaction in dense sand. Strain-softening behavior is accounted for using a modified Mohr-Coulomb constitutive model that accounts for decreasing friction and dilation angles with increasing plastic shear strain.
RÉSUMÉ: Les instruments de simulation avancés avec les capacités convenables de la grande déformation geomechanics doivent représenter le comportement de sol réaliste. La méthode disponible dans Abaqus/Explicit, coupled Eulerian-Lagrangian (CEL), permet des déformations de sol sévères, peut être utilisé avec la conduite constitutive définie d'utilisateur et la balance bien en ce qui concerne les temps de simulation de traitement parallèles. La méthode CEL (et d'autres méthodes) est appliquée dans cette étude pour simuler l'action réciproque de pipe/sol dans le sable dense. La conduite adoucissant effort est estimée pour utiliser un Mohr-coulomb modifié constitutive le modèle qui représente la friction diminuante et les angles de dilatation avec l'augmentation de l'effort de tondage de plastique.
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Kenton Pike; Shawn Kenny; Bipul Hawlader (2013) Advanced analysis of pipe/soil interaction accounting for strain localization in GEO2013. Ottawa, Ontario: Canadian Geotechnical Society.
@article{GeoMon2013Paper305,
author = Kenton Pike; Shawn Kenny; Bipul Hawlader,
title = Advanced analysis of pipe/soil interaction accounting for strain localization ,
year = 2013
}
title = Advanced analysis of pipe/soil interaction accounting for strain localization ,
year = 2013
}