Learning Forum

[Rommel Jr. Landicho]

Hi! I am trying to model a reinforced concrete beam using Menetrey Willam Concrete. I am trying to insert the mechanical apdl command snippet under the concrete in geometry tree but this error keeps showing "An unknown error occurred during solution.  Check the Solver Output on the Solution Information object for possible causes." and does not show any output. 

 

Here is the command:

/PREP7

! ELASTIC CONSTANTS
MP,EX,1,3.0E9                             ! 3 GPa and 0.2 poisson
MP,NUXY,1,0.2

TB,CONCR,1,,,MW
TBDATA,1,40E6,6E6,46.4E6     !40 MPa compressive, 6 MPa tensile, 46.4 MPa biaxial
TB,CONCR,1,,,DILA
TBDATA,1,9                               !9 dilatancy angle 

TB,CONCR,1,,,HSD6
TBDATA,1,0.001104,0.0035,0.3,0.3,0.01,0.05 !Linear softening parameters

! Helps with convergence

TB,CONCR,matid,,,MSOL
TBDATA,1,2,1,1e-3,100,10,1e-20 

! Command for open and closed cracks, crushing and cracking of concrete

TBDE,CONCR,1,,,  
TB,CONCR,1,1,9,  
TBTEMP,0
TBDATA,,0.3,0.8,6,-1,,  
TBDATA,,,,,,, 

The reason why I am inserting the command snippet for input parameters of Menetrey Willam instead of just typing in the Engineering Data is that I want to include an APDL command for closed and open crack of concrete, cracking and crushing as shown below. 

TBDE,CONC,1,,,  
TB,CONC,1,1,9,  
TBTEMP,0
TBDATA,,0.3,0.8,6,-1,,  
TBDATA,,,,,,,   

I realized that when I input this alone, it overrides all the input parameters I typed in the Engineering Data so I concluded that the input parameters should also be in the command snippet. 

What should I do with the command snippet so that it will work? 

[Ashish Khemka]

Hi,

Please see if the following posts help:

[Concrete model] Menetrey-Willam model, Softening behavior (ansys.com)

How to correctly implement Menetrey- Willam or Drucker Preger model For concrete. (ansys.com)

Regards,

Ashish Khemka