diff --git a/ApplicationCode/GeoMech/GeoMechDataModel/RigFemPart.cpp b/ApplicationCode/GeoMech/GeoMechDataModel/RigFemPart.cpp
index 0b3379eedc..451f954768 100644
--- a/ApplicationCode/GeoMech/GeoMechDataModel/RigFemPart.cpp
+++ b/ApplicationCode/GeoMech/GeoMechDataModel/RigFemPart.cpp
@@ -72,7 +72,8 @@ const RigFemPartGrid* RigFemPart::getOrCreateStructGrid() const
 {
     if ( m_structGrid.isNull() )
     {
-        m_structGrid = new RigFemPartGrid( this );
+        m_structGrid = new RigFemPartGrid();
+        m_structGrid->setFemPart( this );
     }
 
     return m_structGrid.p();
diff --git a/ApplicationCode/GeoMech/GeoMechDataModel/RigFemPartGrid.cpp b/ApplicationCode/GeoMech/GeoMechDataModel/RigFemPartGrid.cpp
index cbe5283411..9861d33b3c 100644
--- a/ApplicationCode/GeoMech/GeoMechDataModel/RigFemPartGrid.cpp
+++ b/ApplicationCode/GeoMech/GeoMechDataModel/RigFemPartGrid.cpp
@@ -26,10 +26,9 @@
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
-RigFemPartGrid::RigFemPartGrid( const RigFemPart* femPart )
+RigFemPartGrid::RigFemPartGrid()
+    : m_femPart( nullptr )
 {
-    m_femPart = femPart;
-    generateStructGridData();
 }
 
 //--------------------------------------------------------------------------------------------------
@@ -37,6 +36,15 @@ RigFemPartGrid::RigFemPartGrid( const RigFemPart* femPart )
 //--------------------------------------------------------------------------------------------------
 RigFemPartGrid::~RigFemPartGrid() {}
 
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+void RigFemPartGrid::setFemPart( const RigFemPart* femPart )
+{
+    m_femPart = femPart;
+    generateStructGridData();
+}
+
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
diff --git a/ApplicationCode/GeoMech/GeoMechDataModel/RigFemPartGrid.h b/ApplicationCode/GeoMech/GeoMechDataModel/RigFemPartGrid.h
index f01e859e9a..7c72aa9259 100644
--- a/ApplicationCode/GeoMech/GeoMechDataModel/RigFemPartGrid.h
+++ b/ApplicationCode/GeoMech/GeoMechDataModel/RigFemPartGrid.h
@@ -26,9 +26,11 @@ class RigFemPart;
 class RigFemPartGrid : public cvf::StructGridInterface
 {
 public:
-    explicit RigFemPartGrid( const RigFemPart* femPart );
+    RigFemPartGrid();
     ~RigFemPartGrid() override;
 
+    void setFemPart( const RigFemPart* femPart );
+
     bool   ijkFromCellIndex( size_t cellIndex, size_t* i, size_t* j, size_t* k ) const override;
     size_t cellIndexFromIJK( size_t i, size_t j, size_t k ) const override;