Add and test ability to suppress creation of displaced mesh closes #1…

…2580
idaholab · Dec 5, 2018 · 7c5a3dc · 7c5a3dc
1 parent 3dbbda1
commit 7c5a3dc
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Showing 4 changed files with 48 additions and 5 deletions.
diff --git a/framework/src/actions/CreateDisplacedProblemAction.C b/framework/src/actions/CreateDisplacedProblemAction.C
@@ -23,7 +23,14 @@ validParams<CreateDisplacedProblemAction>()
       "displacements",
       "The variables corresponding to the x y z displacements of the mesh.  If "
       "this is provided then the displacements will be taken into account during "
-      "the computation.");
+      "the computation. Creation of the displaced mesh can be suppressed even if "
+      "this is set by setting 'use_displaced_mesh = false'.");
+  params.addParam<bool>(
+      "use_displaced_mesh",
+      true,
+      "Create the displaced mesh if the 'displacements' "
+      "parameter is set. If this is 'false', a displaced mesh will not be created, "
+      "regardless of whether 'displacements' is set.");
 
   return params;
 }
@@ -36,7 +43,7 @@ CreateDisplacedProblemAction::CreateDisplacedProblemAction(InputParameters param
 void
 CreateDisplacedProblemAction::act()
 {
-  if (isParamValid("displacements"))
+  if (isParamValid("displacements") && getParam<bool>("use_displaced_mesh"))
   {
     if (!_displaced_mesh)
       mooseError("displacements were set but a displaced mesh wasn't created!");

diff --git a/framework/src/actions/SetupMeshAction.C b/framework/src/actions/SetupMeshAction.C
@@ -50,7 +50,14 @@ validParams<SetupMeshAction>()
       "displacements",
       "The variables corresponding to the x y z displacements of the mesh.  If "
       "this is provided then the displacements will be taken into account during "
-      "the computation.");
+      "the computation. Creation of the displaced mesh can be suppressed even if "
+      "this is set by setting 'use_displaced_mesh = false'.");
+  params.addParam<bool>(
+      "use_displaced_mesh",
+      true,
+      "Create the displaced mesh if the 'displacements' "
+      "parameter is set. If this is 'false', a displaced mesh will not be created, "
+      "regardless of whether 'displacements' is set.");
   params.addParam<std::vector<BoundaryName>>("ghosted_boundaries",
                                              "Boundaries to be ghosted if using Nemesis");
   params.addParam<std::vector<Real>>("ghosted_boundaries_inflation",
@@ -208,14 +215,14 @@ SetupMeshAction::act()
     }
 
     _mesh = _factory.create<MooseMesh>(_type, "mesh", _moose_object_pars);
-    if (isParamValid("displacements"))
+    if (isParamValid("displacements") && getParam<bool>("use_displaced_mesh"))
       _displaced_mesh = _factory.create<MooseMesh>(_type, "displaced_mesh", _moose_object_pars);
   }
   else if (_current_task == "init_mesh")
   {
     _mesh->init();
 
-    if (isParamValid("displacements"))
+    if (isParamValid("displacements") && getParam<bool>("use_displaced_mesh"))
     {
       // Initialize the displaced mesh
       _displaced_mesh->init();

diff --git a/modules/tensor_mechanics/test/tests/elastic_patch/tests b/modules/tensor_mechanics/test/tests/elastic_patch/tests
@@ -37,6 +37,21 @@
              'ComputeSmallStrain.md ComputeLinearElasticStress.md'
     issues = '#12584'
   [../]
+  [./elastic_patch_incremental_small_no_disp_mesh]
+    prereq = elastic_patch_total_small
+    type = 'Exodiff'
+    input = 'elastic_patch.i'
+    cli_args = 'Mesh/use_displaced_mesh=false Materials/strain/type=ComputeIncrementalSmallStrain Kernels/TensorMechanics/use_displaced_mesh=false Outputs/file_base=elastic_patch_small_out'
+    exodiff = 'elastic_patch_small_out.e'
+    requirement = 'The tensor mechanics module shall have the ability to '
+                  'compute spatially uniform stresses under prescribed '
+                  'linearly varying displacements on a set of irregular hexes '
+                  'using an incremental small-strain calculation with no displaced '
+                  'mesh created.'
+    design = 'ElasticEnergyAux.md ComputeIsotropicElasticityTensor.md '
+             'ComputeIncrementalSmallStrain.md ComputeFiniteStrainElasticStress.md'
+    issues = '#12584 #12580'
+  [../]
   [./elastic_patch_Bbar]
     type = 'Exodiff'
     input = 'elastic_patch.i'

diff --git a/test/tests/outputs/displaced/tests b/test/tests/outputs/displaced/tests
@@ -7,6 +7,9 @@
     exodiff = 'displaced_adapt_test_out.e-s003'
     recover = false
     max_parallel = 1
+    requirement = "The system shall be able to output the displaced mesh for a model with adaptive mesh refinement."
+    design = "Outputs/index.md Adaptivity/index.md"
+    issues = "#1927"
   [../]
 
   [./non_displaced_fallback]
@@ -17,4 +20,15 @@
     design = "Outputs/index.md"
     issues = "#11309"
   [../]
+
+  [./mesh_use_displaced_mesh_false]
+    prereq = non_displaced_fallback
+    type = 'RunException'
+    input = 'non_displaced_fallback.i'
+    cli_args = 'Mesh/displacements=a Mesh/use_displaced_mesh=false'
+    expect_err = "Parameter 'use_displaced' ignored, there is no displaced problem in your simulation."
+    requirement = "If the user asks for no displaced mesh to be created, even though displacements are provided in the mesh block, the system shall not create a displaced mesh"
+    design = "syntax/Mesh/index.md"
+    issues = "#12580"
+  [../]
 []