App: Add StiffnessDensity property

src/App/Application.cpp

@@ -2027,6 +2027,7 @@ void Application::initTypes()
     App::PropertySpecificHeat               ::init();
     App::PropertySpeed                      ::init();
     App::PropertyStiffness                  ::init();
+    App::PropertyStiffnessDensity           ::init();
     App::PropertyStress                     ::init();
     App::PropertyTemperature                ::init();
     App::PropertyThermalConductivity        ::init();

src/App/PropertyUnits.cpp

@@ -621,6 +621,17 @@ PropertyStiffness::PropertyStiffness()
     setUnit(Base::Unit::Stiffness);
 }
 
+//**************************************************************************
+// PropertyStiffnessDensity
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+TYPESYSTEM_SOURCE(App::PropertyStiffnessDensity, App::PropertyQuantity)
+
+PropertyStiffnessDensity::PropertyStiffnessDensity()
+{
+    setUnit(Base::Unit::StiffnessDensity);
+}
+
 //**************************************************************************
 // PropertyTemperature
 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

src/App/PropertyUnits.h

@@ -620,7 +620,7 @@ public:
 
 /** Stiffness property
  * This is a property for representing stiffness. It is basically a float
- * property. On the Gui it has a quantity like m/s^2.
+ * property. On the Gui it has a quantity like N/m.
  */
 class AppExport PropertyStiffness: public PropertyQuantity
 {
@@ -631,8 +631,21 @@ public:
     ~PropertyStiffness() override = default;
 };
 
+/** StiffnessDensity property
+ * This is a property for representing stiffness per area unit. It is basically a float
+ * property. On the Gui it has a quantity like Pa/m.
+ */
+class AppExport PropertyStiffnessDensity: public PropertyQuantity
+{
+    TYPESYSTEM_HEADER_WITH_OVERRIDE();
+
+public:
+    PropertyStiffnessDensity();
+    ~PropertyStiffnessDensity() override = default;
+};
+
 /** Stress property
- * This is a property for representing . It is basically a float
+ * This is a property for representing stress. It is basically a float
  * property. On the Gui it has a quantity like Pa.
  */
 class AppExport PropertyStress: public PropertyQuantity