The OpenSees Community

Some of us use OpenSees primarily for geotechnical purposes. I have personally asked several soil questions on the main forum without really getting a response. My gut tells me this is because most people log into here to discuss structural problems and thus geotechnical expertise is lacking. I have...

Perhaps there is some sort of work-around. The rounded mohr coulomb yield surface (http://opensees.berkeley.edu/OpenSees/manuals/usermanual/1459.htm) can be wrapped inside a Template3Dep material. It defines the William-Warnke yield surface criterion. According to wikipedia: "The Willam-Warnke ...

I would like to model a simply supported beam with point load in the middle, but using continuum (quad or tri) elements. I have already tried using quad and tri31 elements but the results are not even close to the analytical result. I already asked some more knowledgable folks who claim that shear l...

I am trying to generalize the block command for bilinear quads to be able to make a mesh of varying geometry. Unfortunately when I pass in variables as arguments to the block command I get the following error: WARNING block2D numX? numY? startNode? startEle? eleType? eleArgs?: invalid node coordinat...

I already did that but have not received a response. That's why I'm asking here.

Allright. So I have succeeded in generating a soil model as shown in the following image (https://postimg.org/image/cat08noo1/) using GiDOpenSees interface. I am postponing the liquefaction part for later and just focusing on the dry material. - General Problem Information: 2DOF and 2dimensions. - E...

I would like to use OpenSees for validation of an FE model I am currently working on regarding seismic liquefaction. I am trying to implement the example developed in the following link: http://opensees.berkeley.edu/wiki/index.php/PressureDependMultiYield-Example_8 However, I ran into a problem. The...

Hello, I am just getting back into OpenSees, but for geotech this time. I would like to simulate the following problem: - Geometry: Soil Layer 20 meters wide and 10 meters deep - Loading: -1 kPa on top of the soil layer going from x=0 to x = 0.5. Loading remains constant throughout time domain. - Co...