Warning: Undefined array key 1 in /home/np29546/public_html/elmerice/wiki/inc/auth.php on line 78

Warning: Cannot modify header information - headers already sent by (output started at /home/np29546/public_html/elmerice/wiki/inc/auth.php:78) in /home/np29546/public_html/elmerice/wiki/inc/auth.php on line 431

Warning: Undefined array key "DOKU_PREFS" in /home/np29546/public_html/elmerice/wiki/inc/common.php on line 2082

Warning: Cannot modify header information - headers already sent by (output started at /home/np29546/public_html/elmerice/wiki/inc/auth.php:78) in /home/np29546/public_html/elmerice/wiki/inc/common.php on line 2090

Warning: Cannot modify header information - headers already sent by (output started at /home/np29546/public_html/elmerice/wiki/inc/auth.php:78) in /home/np29546/public_html/elmerice/wiki/inc/actions.php on line 38
solvers:forcetostress [Elmer/Ice Wiki]

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
Next revision Both sides next revision
solvers:forcetostress [2012/11/20 23:05]
gag [SIF contents]
solvers:forcetostress [2014/09/22 09:04]
tzwinger [General Description]
Line 13: Line 13:
  
 ==== General Description ==== ==== General Description ====
 +For a given boundary, this solver computes the nodal stress equivalent to a given nodal force. Force here means the result of a variable, named stress, which is of the same units than the force but per unit-area in 3D or unit-length in 2D. This can be used also to infer the flux from the value of a debit or to infer a tangential stress from the value of a tangential force. 
  
  
 ==== SIF contents ==== ==== SIF contents ====
-For a given boundarythis solver computes the nodal stress equivalent to given nodal normal force. This can be used also to infer the flux from the knowledge of a debit +In the SIF example below, the normal stress on boundary is inferred from the 3rd component of the Stokes residual
 <code> <code>
 Solver 1 Solver 1
Line 24: Line 23:
   Stabilization Method = String Stabilized   Stabilization Method = String Stabilized
   Flow Model = Stokes   Flow Model = Stokes
- 
   ...   ...
  
-  Exported Variable 1 = Flow Solution Loads[Fx:1 Fy:1 Force:1 CEQ Residual:1 ]+  Exported Variable 1 = Flow Solution Loads[Fx:1 Fy:1 Fz:1 CEQ Residual:1 ]
   Calculate Loads = Logical True   Calculate Loads = Logical True
 End End
Line 33: Line 31:
 Solver 2 Solver 2
     Equation = "ForceToStress"     Equation = "ForceToStress"
-    Procedure = File "./ForceToStress" "ForceToStress"+    Procedure = File "ElmerIceSolvers" "ForceToStress"
     Variable = String "Stress"     Variable = String "Stress"
     Variable DOFs = 1     Variable DOFs = 1
 +    
 +    Force Variable Name = String "Fz"
  
     Linear System Solver = Direct     Linear System Solver = Direct
Line 56: Line 56:
  
 ==== Examples ==== ==== Examples ====
-Download an example using the FlowDepth Solver. TODO+ 
 +In the example found in ''[ELMER_TRUNK]/elmerice/Tests/ForceToStress'', a pressure applied on a boundary is first integrated to get  nodal force using the [[solvers:gethydrostaticloads|GetHydrostaticLoad Solver]], and then the pressure is recovered using the ''ForceToStress'' Solver.  
solvers/forcetostress.txt · Last modified: 2019/01/16 10:00 by mondher
CC Attribution-Share Alike 4.0 International
www.chimeric.de Valid CSS Driven by DokuWiki do yourself a favour and use a real browser - get firefox!! Recent changes RSS feed Valid XHTML 1.0