feat(shell-surface-pressure-load): step 1 - map-pressure-input-contract

include/fesa/model/domain.h

@@ -74,12 +74,19 @@ class StepDefinition {
   const DomainCollectionView<ConcentratedNodalLoad>& ConcentratedLoads()
       const noexcept;
 
+  /// @brief Returns additive surface pressure records in source order.
+  const std::vector<SurfacePressureLoadDefinition>& SurfacePressureLoads()
+      const noexcept;
+
   /// @brief Returns the approved static procedure identity.
   StaticProcedureKind ProcedureKind() const noexcept;
 
   /// @brief Reports whether this step uses the nonlinear static procedure.
   bool IsNonlinearStatic() const noexcept;
 
+  /// @brief Reports the source NLGEOM setting for this static step.
+  bool UsesNonlinearGeometry() const noexcept;
+
   /// @brief Returns the static initial increment provenance value.
   double InitialIncrement() const noexcept;
 
@@ -109,6 +116,7 @@ class StepDefinition {
   std::vector<std::unique_ptr<Load>> loads_;
   LoadView loads_view_;
   DomainCollectionView<ConcentratedNodalLoad> concentrated_loads_view_;
+  std::vector<SurfacePressureLoadDefinition> surface_pressure_loads_;
   StaticProcedureKind procedure_kind_;
   bool nlgeom_;
   double initial_increment_;
@@ -173,6 +181,9 @@ class Domain {
   /// @brief Returns element sets in stable declaration order.
   const std::vector<ElementSet>& ElementSets() const noexcept;
 
+  /// @brief Returns assembly element surfaces in stable declaration order.
+  const std::vector<ElementSurfaceDefinition>& ElementSurfaces() const noexcept;
+
   /// @brief Returns static steps in stable declaration order.
   const DomainCollectionView<StepDefinition>& Steps() const noexcept;
 

include/fesa/model/model_types.h

@@ -53,6 +53,56 @@ struct NodalLoad {
   SourceLocation location;
 };
 
+/// @brief Identifies the selected exterior shell surface side.
+enum class ShellSurfaceSide { kSpos, kSneg };
+
+/// @brief Identifies how a surface data member resolved its element facets.
+enum class SurfaceMemberKind { kDirect, kElset };
+
+/// @brief Stores one resolved S4/S4R facet in an assembly element surface.
+struct ElementSurfaceFacetDefinition {
+  EntityIndex element_index;
+  std::size_t facet_ordinal;
+  std::string part_name_raw;
+  std::string part_name_canonical;
+  std::string instance_name_raw;
+  std::string instance_name_canonical;
+  std::int64_t source_element_label;
+  std::string source_element_label_raw;
+  std::string source_element_type;
+  ShellSurfaceSide side;
+  SourceLocation first_member_location;
+  std::size_t first_member_ordinal;
+  SurfaceMemberKind member_kind;
+  std::string elset_name_raw;
+  std::string elset_name_canonical;
+};
+
+/// @brief Stores one immutable named assembly-level element surface.
+struct ElementSurfaceDefinition {
+  std::string surface_name_raw;
+  std::string surface_name_canonical;
+  std::vector<ElementSurfaceFacetDefinition> facets;
+  SourceLocation declaration_location;
+  std::size_t declaration_ordinal;
+};
+
+/// @brief Stores one ordered uniform pressure record targeting a surface.
+struct SurfacePressureLoadDefinition {
+  std::string step_name_raw;
+  std::string step_name_canonical;
+  EntityIndex surface_index;
+  std::string surface_name_raw;
+  std::string surface_name_canonical;
+  std::string load_type;
+  double magnitude;
+  std::string magnitude_raw;
+  SourceLocation keyword_location;
+  SourceLocation data_location;
+  std::size_t data_ordinal;
+  std::size_t load_ordinal;
+};
+
 /// @brief Identifies the approved static procedure semantics for one step.
 enum class StaticProcedureKind {
   kLinearSmallDisplacement,
@@ -66,6 +116,7 @@ struct StaticStepDefinition {
       std::string step_name,
       std::vector<PrescribedDisplacementDefinition> step_boundaries,
       std::vector<NodalLoad> step_loads,
+      std::vector<SurfacePressureLoadDefinition> step_surface_pressure_loads,
       StaticProcedureKind step_procedure_kind,
       bool step_nlgeom,
       double step_initial_increment,
@@ -73,10 +124,11 @@ struct StaticStepDefinition {
       double step_minimum_increment,
       double step_maximum_increment,
       SourceLocation step_location)
-      : name{std::move(step_name)},
-        boundaries{std::move(step_boundaries)},
-        loads{std::move(step_loads)},
-        procedure_kind{step_procedure_kind},
+        : name{std::move(step_name)},
+          boundaries{std::move(step_boundaries)},
+          loads{std::move(step_loads)},
+          surface_pressure_loads{std::move(step_surface_pressure_loads)},
+          procedure_kind{step_procedure_kind},
         nlgeom{step_nlgeom},
         initial_increment{step_initial_increment},
         time_period{step_time_period},
@@ -84,6 +136,24 @@ struct StaticStepDefinition {
         maximum_increment{step_maximum_increment},
         location{std::move(step_location)} {}
 
+  /// @brief Creates a static step without surface pressure records.
+  StaticStepDefinition(
+      std::string step_name,
+      std::vector<PrescribedDisplacementDefinition> step_boundaries,
+      std::vector<NodalLoad> step_loads,
+      StaticProcedureKind step_procedure_kind,
+      bool step_nlgeom,
+      double step_initial_increment,
+      double step_time_period,
+      double step_minimum_increment,
+      double step_maximum_increment,
+      SourceLocation step_location)
+      : StaticStepDefinition(
+            std::move(step_name), std::move(step_boundaries),
+            std::move(step_loads), {}, step_procedure_kind, step_nlgeom,
+            step_initial_increment, step_time_period, step_minimum_increment,
+            step_maximum_increment, std::move(step_location)) {}
+
   /// @brief Creates a legacy linear static step definition.
   StaticStepDefinition(
       std::string step_name,
@@ -104,6 +174,7 @@ struct StaticStepDefinition {
   std::string name;
   std::vector<PrescribedDisplacementDefinition> boundaries;
   std::vector<NodalLoad> loads;
+  std::vector<SurfacePressureLoadDefinition> surface_pressure_loads;
   StaticProcedureKind procedure_kind;
   bool nlgeom;
   double initial_increment;
@@ -172,6 +243,7 @@ struct ModelDefinition {
   std::vector<ElementSet> element_sets;
   std::vector<PartDefinition> parts;
   std::vector<InstanceDefinition> instances;
+  std::vector<ElementSurfaceDefinition> element_surfaces;
   std::vector<StaticStepDefinition> steps;
   std::vector<Diagnostic> warnings;
 };