Evaluation of the Stiffness and Volumetric Behaviors of Medium Dense Sand under Principal Stress Rotations

2010 ◽  
Vol 38 (3) ◽  
pp. 102635
Author(s):  
M. R. Mitchell ◽  
R. E. Link ◽  
Kuang-Tsung Chang ◽  
Louis Ge ◽  
Stein Sture
Keyword(s):  
Principal Stress ◽  
Dense Sand

Dense sand weakened by continuous principal stress direction rotation

Géotechnique ◽  
1979 ◽  
Vol 29 (1) ◽  
pp. 91-96 ◽  
Author(s):  
J. R. F. Arthur ◽  
K. S. Chua ◽  
T. Dunstan
Keyword(s):  
Principal Stress ◽  
Principal Stress Direction ◽  
Dense Sand ◽  
Stress Direction

The Development and Implementation of Improved Duncan-Chang Constitutive Model in ABAQUS

2011 ◽  
Vol 99-100 ◽  
pp. 965-971
Author(s):  
Zhi Ping Dai ◽  
Cheng Zhao ◽  
Chun Feng Zhao
Keyword(s):  
Constitutive Model ◽  
Principal Stress ◽  
Deformation Behavior ◽  
Fine Sand ◽  
Intermediate Principal Stress ◽  
Strength Theory ◽  
Unified Strength Theory ◽  
Dense Sand ◽  
Improved Model ◽  
Chang Model

As it ignorance the effect of intermediate principal stress, traditional Duncan - Chang model has limitation when applied into geotechnical engineering. It was improved through incorporating the effect of intermediate principal stress based on unified strength theory. Under the help of customized modification platform in ABAQUS, the applicability and stability of the improved model and the reliability of subroutine were validated through simulation of several examples. The results show the improved model can better reflect the deformation behavior of soil through taking the influence of intermediate principal stress into consideration. The improved model in paper can be applied into dense sand, fine sand and clay.

Generalized stress-path-dependent soil behaviour with a new hollow cylinder torsional apparatus

1990 ◽  
Vol 27 (5) ◽  
pp. 601-616 ◽  
Author(s):  
Y. P. Vaid ◽  
A. Sayao ◽  
Enhuang Hou ◽  
D. Negussey
Keyword(s):  
Principal Stress ◽  
Hollow Cylinder ◽  
Path Dependence ◽  
Stress Path ◽  
Dense Sand ◽  
Deformation Response ◽  
Stress Rotation ◽  
Path Dependent ◽  
Offshore Wave ◽  
Soil Behaviour

A new hollow cylinder torsional shear apparatus is described. The apparatus is suitable for investigating soil behaviour under generalized stress paths, including principal stress rotations, characteristic of earthquake and offshore-wave loadings. A new, more rational assessment of stress nonuniformity across the wall of the hollow cylinder specimen is made, and the "no go" regions of the stress space are delineated that limit stress nonuniformity to acceptable levels. Operation of the apparatus and experimental procedures for tests on reconstituted specimens of sand are described. Typical results of drained tests on loose and dense sand are presented to illustrate the capabilities of the apparatus as a general stress-path loading device and to highlight the stress-path dependence of soil behaviour, in particular, the deformation response to principal stress rotations. Key words: hollow cylinder apparatus, generalized stress paths, principal stress rotation, sand, deformations.

Sign in / Sign up

Export Citation Format

Share Document