Hi
I was checking the theory manual of the constitutive behavior in a porous medium. The manual provides a general effective strain equation that would include the grain bulk moduli, but it doesn't include the pore fluid bulk moduli (nor does it mention anything about young's modulus) in the...
How can i identify a certain material in the subroutine?
Like i wanna do something like this if i have material x and y
If (material .eq. x) then
follow a certain logic
if (material .eq. y) then
follow another logic.
So how can i do that?
Hi
I am making this model where i am calling some variables (void ratio, pore pressure, etc) and creating others (Bf) using UVARM subroutine. variables are read using URDFIL, then by using common block to transfere the values to UTEMP where i am relating the TEMP to (Bf).
The problem is ...
When i try to restart my analysis, i get this error message and i don;t understand why.
***ERROR: Features such as new nodes/elements, IMPORT, SYMMETRIC MODEL
GENERATION, MAP SOLUTION are detected in a continuation analysis
where the original model is defined in terms of...
I want to use time=day instead of second in my analysis (to identify element permeability). Does this mean i should convert all time units to day? (including gravity m/day2 instead of 9.81 m/s2)?
in all soil tutorials, to achieve a drained analysis, loads are applied at one step (using very short time and without releasing the pore pressure) , then during the next step pore pressure is identified to be zero and the consolidation behgaviour is monitored with time. My question is, would it...
I am modelling an excavation, and i am wondering which parameter should give me the failure surface (plastic zone). the closest surface to what i was looking for was the AC yield, but still not sure if that is correct. Any ideas?
Hi
There is something i am not sure i do understand it right.
For consolidation (soil analysis-fluid/stress model), when i set a time for the consolidation step (either fixed or automatic) , would abaqus give the results at that time, or would it assume that it is the time for the 100%...
During my analysis, i need to change material of a certain set. and as the field option does not change the material density so i need to find a way to change it. Mass scaling is in Explicit, so anybody has any idea what should i do?
(i used to try something weird, which is apply upward gravity...
i identified zero pore pressure BC at my 3D model surface(tetrahedron element). Yet when i check the pore stresses at model surface and integration points, it is never zero. is there an interpretition for that?
Note: in 2D model pore pressure equals zero)
Hi Folks
I need your help, I want to weaken some parts in a
steel pipe (Failure phenomenon which is related
directly to residual stress termed “stress corrosion
cracking”. This occurs in metals which are subjected
to corrosive environments whilst stressed),
The best way for that will be...
During my analysis, i need to change material of a certain set. As i did so using field and changed field in the next step of this set to be =2,i figured out that density doesnot change (from the manual Density can be defined as a function of temperature and field variables; however, for all...
I recieve this message while conducting a soil analysis
Warning "The strain increment is so large that the program will not attempt the plasticity calculation at 391 points"
***ERROR: FIXED TIME INCREMENT IS TOO LARGE
Can anybody guide me, what is wrong because i tried to minimize the fixed...
I'm modelling a 3D excavation and i'm filling the excavated parts with another material.Does anybody know how can i change the material of a set through different steps?
