Assigning different material properties to a fiber-matrix composite

[goli....@gmail.com]

Dear all,

I am trying to use moose to capture a coupled thermo-chemical phenomenon in a fiber-matrix composite. I have used Abaqus to generate a mesh which has 1 single parts and 2 sets of regions (one for fiber and another one for matrix). In the moose input file, I need to assign to different material properties to the two defined sets (fiber and matrix). I am using this commands:

 

[Materials]

  [./DCPD]

    type = GenericConstantMaterial

   # block = ''

    prop_names = 'specific_heat density Hr TConductivity'

    prop_values = '1.0 1.0 1.000 2.2559e-8' # polymer attributes

  [../]

  

  [./PDMS]

    type = GenericConstantMaterial

   block = ''

   prop_names = 'specific_heat density Hr TConductivity'

    prop_values = '1 .8029 0 3.3117e-8' # PDMS attributes

  [../]

But I have no idea what should I put for the "blocks". In the mesh input file (extracted from Abaqus) I have labeled those two sets as : _PickedSet3 and _PickedSet4. But, "block" does not recognize these sets via these labels. To assign initial conditions, I used following commands (using "boundary" command )and it could recognize the set of nodes and elements for fiber and worked perfect:. Is there any way to use 'boundary' instead of 'block' to assign material properties?!

[BCs]

  active = 'templeft'

  [./templeft]

    type = DirichletBC

    #type = NeumannBC

    variable = Temperature

    boundary = '_PickedSet3'

    value = '0.85'

    

  [../]

        

[]

Thanks in advance for your great help.

Best,

Elyas

[Andrew....@csiro.au]

Load the mesh file into paraview and see what block number your _PickedSet3 is.   You can use the RenameBlock MeshModifier to rename things if you want.

 

a

 

 

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