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Title: A comparative study of the hypoplasticity and the fabric-dependent dilatant double shearing models for granular materials

Abstract

In this paper, we consider the mechanical response of granular materials and compare the predictions of a hypoplastic model with that of a recently developed dilatant double shearing model which includes the effects of fabric. We implement the constitutive relations of the dilatant double shearing model and the hypoplastic model in the finite element program ABACUS/Explicit and compare their predictions in the triaxial compression and cyclic shear loading tests. Although the origins and the constitutive relations of the double shearing model and the hypoplastic model are quite different, we find that both models are capable of capturing typical behaviours of granular materials. This is significant because while hypoplasticity is phenomenological in nature, the double shearing model is based on a kinematic hypothesis and microstructural considerations, and can easily be calibrated through standard tests.

Authors:
 [1];  [1];
  1. (Tulane Univ., New Orleans, LA)
Publication Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, and Morgantown, WV; Tulane Institute for Macromolecular Engineering and Science (TIMES), Tulane University, New Orleans, LA
Sponsoring Org.:
USDOE - Office of Fossil Energy (FE)
OSTI Identifier:
912769
Report Number(s):
DOE/NETL-IR-2007-047
Journal ID: 1096-9853 (online); 0363-9061 (print); TRN: US200801%%1009
DOE Contract Number:  
None cited
Resource Type:
Journal Article
Resource Relation:
Journal Name: International Journal for Numerical and Analytical Methods in Geomechanics; Journal Volume: 31; Journal Issue: 5
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; COMPRESSION; GRANULAR MATERIALS; SHEAR; RESPONSE FUNCTIONS; MATHEMATICAL MODELS; PLASTICITY; granular materials; dilatant double shearing model; hypoplasticity; fabric; cyclic shear loading

Citation Formats

Zhu, H., Mehrabadi, M., and Massoudi, M.. A comparative study of the hypoplasticity and the fabric-dependent dilatant double shearing models for granular materials. United States: N. p., 2007. Web. doi:10.1002/nag.559.
Zhu, H., Mehrabadi, M., & Massoudi, M.. A comparative study of the hypoplasticity and the fabric-dependent dilatant double shearing models for granular materials. United States. doi:10.1002/nag.559.
Zhu, H., Mehrabadi, M., and Massoudi, M.. Wed . "A comparative study of the hypoplasticity and the fabric-dependent dilatant double shearing models for granular materials". United States. doi:10.1002/nag.559.
@article{osti_912769,
title = {A comparative study of the hypoplasticity and the fabric-dependent dilatant double shearing models for granular materials},
author = {Zhu, H. and Mehrabadi, M. and Massoudi, M.},
abstractNote = {In this paper, we consider the mechanical response of granular materials and compare the predictions of a hypoplastic model with that of a recently developed dilatant double shearing model which includes the effects of fabric. We implement the constitutive relations of the dilatant double shearing model and the hypoplastic model in the finite element program ABACUS/Explicit and compare their predictions in the triaxial compression and cyclic shear loading tests. Although the origins and the constitutive relations of the double shearing model and the hypoplastic model are quite different, we find that both models are capable of capturing typical behaviours of granular materials. This is significant because while hypoplasticity is phenomenological in nature, the double shearing model is based on a kinematic hypothesis and microstructural considerations, and can easily be calibrated through standard tests.},
doi = {10.1002/nag.559},
journal = {International Journal for Numerical and Analytical Methods in Geomechanics},
number = 5,
volume = 31,
place = {United States},
year = {Wed Apr 25 00:00:00 EDT 2007},
month = {Wed Apr 25 00:00:00 EDT 2007}
}