Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations The Obturator on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

soils analysis of a biphasic tissue in 3D

Status
Not open for further replies.

IceBreakerSours

Bioengineer
Jan 18, 2012
1,638
My goal is to run a soils analysis as per this research article. Please see the attached INP. All parameters (except one) were acquired from this paper. However, the geometry is simple. C3D8PH elements are used.

I am noticing a warning message WarnNodeICDef - initial conditions not uniquely defined for almost all nodes. I guess I can understand why that must happen and, perhaps, even fix that issue.

Also, looking at the job diagnostics (residuals for displacement, pore liquid pressure fields, and pressure stress constraint) makes me think that either I am missing something during setting up of the step/analysis or the boundary conditions.

I do not observe a typical creep-like displacement curve and also there is noise in the pressure stress, fluid volume ratio and the void ratio.


 
Replies continue below

Recommended for you

Status
Not open for further replies.

Part and Inventory Search

Sponsor