OpenSees Geotechnical Simulation Capabilities

Developed at U.C. San Diego

Zhaohui Yang,
Jinchi Lu (jinlu@ucsd.edu), and
Ahmed Elgamal (elgamal@ucsd.edu)

(Last modified: 6/15/2010)

Note: The user manual pages below are also available at the OpenSees web site (http://opensees.berkeley.edu/OpenSees/manuals/usermanual/ under "Model-Building Objects" section (choose "nDMaterial Command" -> "Contributed nDMaterials" -> "UCSD Soil Models")).

User Manual (2008 ver 1.0)

(For earlier versions of the user manual, please click 2005, 2004, 2003)

 

Examples

Note 1: FluidSolidPorous Material are currently being updated. Please use OpenSees ver 2.1.0 or earlier versions if you want to use FluidSolidPorous Material.

Note 2: The examples below are compatiable with the latest version of OpenSees (ver 2.2.0). For examples working with earlier versions (from ver 2.0.0 to ver 2.1.0), please click here. For even earlier versions (up to ver 1.7.5), please click here.

Pressure Independent Material

Material in elastic state
Example 1 Single 2D plane-strain quadrilateral element, subjected to sinusoidal base shaking
Example 2 Single 2D quadrilateral element, subjected to monotonic pushover (English units version)
Material in saturated, undrained, elastic-plastic state (coupled with FluidSolidPorous Material)
Example 3 Single quadrilateral element, subjected to sinusoidal base shaking
Example 4 Single quadrilateral element (inclined by 15 degrees), subjected to sinusoidal base shaking
Example 5 Single quadrilateral element, subjected to monotonic pushover
Example 6 Single 3D BbarBrick element, subjected to sinusoidal base shaking
Example 7 Single 3D BbarBrick element (inclined by 15 degrees), subjected to 1D sinusoidal base shaking

Pressure Dependent Material

Material in elastic, drained (or dry) state
Example 8 Single quadrilateral element, subjected to sinusoidal base shaking
Example 9 Single quadrilateral element, subjected to monotonic pushover (English units version)
Material in drained (or dry), elastic-plastic state
Example 10 Single quadrilateral element, subjected to sinusoidal base shaking
Example 11 Single quadrilateral element (inclined by 4 degrees), subjected to sinusoidal base shaking
Example 12 Single quadrilateral element, subjected to monotonic pushover
Example 13 Single 3D BbarBrick element, subjected to sinusoidal base shaking
Example 14 Single 3D BbarBrick element (inclined by 4 degrees), subjected to sinusoidal base shaking
Material in saturated, undrained elastic-plastic state (coupled with FluidSolidPorous Material)
Example 15 Single quadrilateral element, subjected to sinusoidal base shaking
Example 16 Single quadrilateral element, subjected to monotonic pushover
Example 17 Single quadrilateral element (inclined by 4 degrees), subjected to msinusoidal base shaking
Example 18 Single 3D BbarBrick element, subjected to sinusoidal base shaking
Example 19 Single 3D BbarBrick element (inclined by 4 degrees), subjected to sinusoidal base shaking
Example 20 A column of quadrilateral element (inclined by 4 degrees), subjected to sinusoidal base shaking
Material in saturated, undrained elastic-plastic state (with user defined modulus reduction curve)
Example 21 A column of quadrilateral element (inclined by 4 degrees), subjected to sinusoidal base shaking

Solid-Fluid Fully Coupled elements

Example 22 A column (2D plane strain quadUP element) of saturated, undrained Pressure Dependent material (inclined by 4 degrees), subjected to sinusoidal base shaking (English units version)
Example 23 Single 2D 9-4 noded element, subjected to sinusoidal base shaking (PressureDepend02 material)
Example 24 Single 3D brick element, subjected to sinusoidal base shaking (PressureDepend02 material)
Example 25 Single 3D 20-8 noded element, subjected to sinusoidal base shaking (PressureDepend02 material)

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