ABAQUS 在土力学中的应用 (书和代码)
1. 引言
Dr. Sam Helwany (2007) 出版的《(Applied Soil Mechanics with ABAQUS Applications)》一本非常不错的Abaqus应用专著，全书共分9章，每章都带有Abaqus的例题。尽管例子是在6.7版本下运行的，但能够升级到当前版本。
Chapter 1. Properties of Soil.
Soil Formation
Physical Parameters of Soils
Mechanical Properties of Soil
Soil Consistency
Plasticity Chart
Classification Systems
Compaction
Chapter 2. Elasticity and Plasticity.
Stress Matrix
Elasticity
Plasticity
Modified Cam Clay Model
Stress Invariants
Strain Invariants
Extended Cam Clay Model
Modified Drucker–Prager/Cap Model
Lade's Single Hardening Model
Chapter 3. Stresses in Soil.
In Situ Soil Stresses
Stress Increase in a Semi-Infinite Soil Mass Caused by External Loading
Chapter 4. Consolidation.
One-Dimensional Consolidation Theory
Calculation of the Ultimate Consolidation Settlement
Finite Element Analysis of Consolidation Problems
Chapter 5. Shear Strength of Soil.
Direct Shear Test
Triaxial Compression Test
Field Tests
Drained and Undrained Loading Conditions via FEM
Chapter 6. Shallow Foundations.
Modes of Failure
Terzaghi's Bearing Capacity Equation
Meyerhof's General Bearing Capacity Equation
Effects of the Water Table Level on Bearing Capacity
Chapter 7. Lateral Earth Pressure and Retaining Walls.
At-Rest Earth Pressure
Active Earth Pressure
Passive Earth Pressure
Retaining Wall Design
Geosynthetic-Reinforced Soil Retaining Walls
Chapter 8. Piles and Pile Groups.
Drained and Undrained Loading Conditions
Estimating the Load Capacity of Piles
Pile Groups
Settlements of Single Piles and Pile Groups
Laterally Loaded Piles and Pile Groups
Chapter 9: Permeability and Seepage
Bernoulli's Equation
Darcy's Law
Laboratory Determination of Permeability
Permeability of Stratified Soils
Seepage Velocity
Stresses in Soils Due to Flow Seepage
Graphical Solution: Flow Nets
Flow Nets for Anisotropic Soils
Flow Through Embankments
Finite Element Solution
2. 在Abaqus中显示浸润线的位置
下面的例题取自本书第9章，主要目的是显示浸润线的位置。
(1) 清理窗口辅助提示
为了最大化显示结果以及保持干净的窗口，使用Viewport Annotation Options不显示所有的辅助提示。
(2) 显示浸润线位置
Abaqus可能没有专么画浸润线的功能，不过可以通过改变值域的范围显示出浸润线的位置。通过Contour Options图标或者Options>Contour...菜单进入后设置。
(3) 查询(Query)
通过Query Information图标(i图标)或者Tools>Query...菜单进入后选择要查询的变量。
3. 模型导入到Slide2
Abaqus【Abaqus/CAE 2023 安装测试】可以导入dxf文件，但在Abaqus建立的模型不能导出为dxf文件。在现实中，大多数情况下我们没有这样的要求，只有在少数情况下才需要从Abaqus导出为dxf文件。以下以上面所示的坝体为例探索了这种想法。
(1) 使用Export导出Part或者Assembly，保存为ACIS SAT(*.sat）格式或IGES格式。
(3) 在Slide2中导入dxf文件，在此基础上作外部边界，然后删除导入的dxf图形。
