Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

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

Material Properties Change

Status
Not open for further replies.

MCC1966

Geotechnical
Joined
Jul 30, 2006
Messages
60
Location
CA
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
 
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.
 
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
 
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
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top