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Can you try 9_4_QuadUP element? This 9-node element has a better formulation for the solid-fluid fully coupled mechanism.
http://opensees.berkeley.edu/wiki/index ... -p_Element

You can also check the 4-node quadUP element for stratified cases (i.e., no embedded stone column).

The stress is recorded at Gauss integration points, not at nodes. Four_Nine_QuadUP element employs 3x3 Gauss integration scheme. Please check a Finite Element textbook for the Gauss point locations. Also, in Four_Nine_QuadUP element, the order of the Gauss points is not the same as that of element n...

Hi, I downloaded the latest OpenSeesSP.exe (for Windows). I was able to run my tcl file if np = 1. However, when np > 1, I got the following error message: special ele: 0 VERTEX ONE: 2 job aborted: rank: node: exit code[: error message] 0: [server name]: -1073741819: process 0 exited without calling...

http://opensees.berkeley.edu/wiki/index.php/PressureDependMultiYield_Material nDMaterial PressureDependMultiYield $tag $nd $rho $refShearModul $refBulkModul $frictionAng $peakShearStra $refPress $pressDependCoe $PTAng $contrac $dilat1 $dilat2 $liquefac1 $liquefac2 $liquefac3 <$noYieldSurf=20 <$r1 $G...

Yes, it's OK to use BrickUP elements and PressureDependMutiYield for static analysis. Regarding the pore water pressure, BrickUP element (and other U-P elements) uses the velocity of the last dof (i.e., dof 4 for 3D element BrickUP, or dof 3 for 2D element QuadUP) to temporarily store the pore water...

Error message: 1>------ Build started: Project: OpenSeesTk, Configuration: Release Win32 ------ 2>------ Build started: Project: OpenSees, Configuration: Release Win32 ------ 1>Build started 12/11/2012 2:16:56 AM. 2>Build started 12/11/2012 2:16:56 AM. 1>InitializeBuildStatus: 1> Touching ".\.....

Thanks Frank. Now it works like a charm.

OK. Figured out. Added all *.c files of "OTHER\CSPARSE" to Source Files of project "system". Added all *.cpp files of "SRC\api" to Source Files of project "domain". Not sure if this is the "professional" way to do that. But I was able to build those ...

Below is the error message: 1>------ Build started: Project: quickMain, Configuration: Debug Win32 ------ 2>------ Build started: Project: OpenSeesTk, Configuration: Debug Win32 ------ 1>Build started 9/29/2012 1:21:05 AM. 2>Build started 9/29/2012 1:21:05 AM. 2>InitializeBuildStatus: 2> Touching &q...

Thank you very much Vesna.

Below is the sample screen output: CTestNormDispIncr::test() - iteration: 1 current Norm: 0.00022683 (max: 0.0001, Norm deltaR: 20435.1) CTestNormDispIncr::test() - iteration: 2 current Norm: 4.27053e-007 (max: 0.0001, Norm deltaR: 20435.1) CTestNormDispIncr::test() - iteration: 1 current Norm: 0.00...

Linear run. e.g., a mesh of solid elements where the material is linear elastic isotropic.

The 4 connection nodes are NOT connected to anything. They're flying in the model...

Is the linear case supposed to converge at 1 iteration? Why 2 iterations are needed to reach the convergence?
I'm using "test NormDispIncr 1e-04 50 1".

Thanks.
Jinchi

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