Material Properties Change

[MCC1966]

I have two steps to analyze a sample of frozen rock : Heat transfer and Static or Soils Step: upon subjecting it to heat transfer analysis the permaebility, strength , and other rock parameters will change. How can I account for that in the Static (SOILS) Step. (PLease not I am not interested in the thermal stress) Static Step is only to study the Rock sample under mechanical load (gravity)

Thank you

 

[hamadadf]

I'd say use the field option..that will change the soil strength.not sure about permeabilty as far as i understand it is linked with void ratio..and here comes the question, are you sure you can model permeability in static step? because as far as i undersatnd that would be a fluid/stress analysis that would requires soil step.

 

[MCC1966]

Thank Hamadadf
Strength parameter change is associated with Static step
Permeability (of course) associated with SOILS step.
But I am clear how to do so please give some details about the procedure
THanks for help

 

[hamadadf]

as i told you before
as far as i understand...permeability can only be changed my means of changing void ratio.
and for the strength. you can do that by means of field option
e.g
*Mohr Coulomb Hardening, dependencies=1
134.,0., ,1.
16.,0., ,2.
*Permeability, specific=10.
8.3e-10, 0.47
0.0001, 3.
*initial conditions, type=field, variable=1
all, 1.

Step 3
*field, variable=1
all,2