// SM/SD Handoff "Guitar String"
// =============================
// Sierra/SD input
//
// SAND2022-4009 TR

solution
case preload
  receive_sierra_data
  load = 0
case eig
  eigen
  nmodes 20
  solver = gdsw
  load = 0
case pluck
  modaltransient
  time_step = 5.0e-5
  nsteps = 1000
  nskip = 3
  load = 10
end

file 
  geometry_file 'bar_preload.e'
  initialize variable name displacement
    read variable = displacement
    variable type = node
  initialize variable name stress
    read variable = stress
    variable type = element
end

outputs
  disp
  stress
  Constraint_Info
end

boundary
  sideset 1
    x=0
    y=0
  nodeset 4
    fixed
  nodeset 1000 
     z=0
end

BLOCK 1 3 4
  hex8f
  material "aluminum"
END

MATERIAL "aluminum"
  E 7.8e7  +/- 10 %
  nu = 0.0
  density 2.59e-2 +/- 10 %
END

LOAD 0
END

load 10
  nodeset = 2000
  force 0 1 0
  scale 10000
  function = 10
end

function 10
  type = linear
  data 0 0
  data 2.0e-3 1
  data 2.1e-3 0
end

ECHO
END

begin contact definition
  skin all blocks = on
  begin interaction
     surfaces block_1 block_3
  end        
end

sensitivity
  values all
end