The Principal Stresses of Soil Mass in the Direction of Plane Strain

2011 ◽  
Vol 243-249 ◽  
pp. 2657-2665
Author(s):  
De Chun Lu ◽  
Xiu Li Du ◽  
An Nan Zhou ◽  
Yang Ping Yao
Keyword(s):  
Plane Strain ◽  
Principal Stress ◽  
Soil Mass ◽  
Plane Strain Condition ◽  
Strain Condition ◽  
Principal Stresses ◽  
Failure State ◽  
Stress States ◽  
Plain Strain ◽  
Strain Direction

The characteristics of deformation and strength of soils under the plane strain condition can be simplified as a two-dimensional problem. How to easily and reasonably determine the value of principal stress in the direction of plane strain is the key point. Based on the Elastic-plastic stress-strain relationship for soil and test data under the plane strain condition, it is assumed that the relationship between principal stresses in plain strain direction and the principal stresses in the other directions is bilinear. The parameters of bilinear function are determined by one-dimensional consolidation and failure state. The principal stress in plain strain direction is expressed as a function of stress states and material properties. Compared with test results, the rationality of the proposed bilinear principal stress function is testified.

Particle Orientation and Velocity Equations of Clay in a Plane-Strain Condition

1995 ◽  
Vol 62 (1) ◽  
pp. 126-130
Author(s):  
M. Djavid
Keyword(s):  
Plane Strain ◽  
Applied Stress ◽  
Stable Condition ◽  
Plane Strain Condition ◽  
Particle Orientation ◽  
Strain Condition ◽  
Principal Stresses ◽  
Clay Particles ◽  
Stable Orientation ◽  
Line Theory

The directional property of soils, particularly clays, are directly related to the particle orientations. The platy clay particles do possess the tendency to reorient themselves in the most stable condition against applied stress. One may conceive of developing a soil model directly relating particle orientation and applied stress. In this study an angle θ, which is the preferred (therefore stable) orientation of clay particles, is introduced. Using this concept and slip-line theory, the velocity equations of clay in a plane-strain condition are developed. In this approach any change in clay particle orientation is essentially dependent on principal stresses magnitudes as well as their directions. Therefore, the effect of rotation of principal stresses can be included and quantified.

The Comparison of the Loess Mechanical Properties under Plane Strain and Conventional Triaxial Experiments

2014 ◽  
Vol 919-921 ◽  
pp. 791-794
Author(s):  
Lin Ma
Keyword(s):  
Mechanical Properties ◽  
Moisture Content ◽  
Plane Strain ◽  
Confining Pressure ◽  
Test Method ◽  
The Other ◽  
Strain Condition ◽  
Plane Strain Problem ◽  
Plain Strain ◽  
The Impact

Plane strain problem is currently prevalent in the loess engineering. However, this problem still using conventional triaxial test method for processing. So the paper conducted the plain strain test, analyze differences in plane strain experiments with conventional triaxial experiments under different moisture content and confining pressure. Research shows two points, the first one is the impact on the strength of the soil is more under moisture content than confining pressure, the other is that the soil strength under the plane strain condition is significantly greater than conventional triaxial conditions. It shows that the results were conservative under the plane strain problem at past. It played a certain role in guiding the engineering.

Atomistic Analysis on Grain Size Effect of Al Nanocrystal under a Plane Strain Condition

2003 ◽  
Vol 2003.78 (0) ◽  
pp. _7-7_-_7-8_
Author(s):  
Shunsuke IGAWA ◽  
Tomotsugu SHIMOKAWA ◽  
Akihiro NAKATANI ◽  
Hiroshi KITAGAWA
Keyword(s):  
Grain Size ◽  
Size Effect ◽  
Plane Strain ◽  
Plane Strain Condition ◽  
Grain Size Effect ◽  
Strain Condition
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