Creo Simulate > Reference Links > Inconsistent Shell Normals
Inconsistent Shell Normals
If the design study contains Structure analyses, Creo Simulate checks for inconsistent shell normals in 3D models. If you have not fixed the normal direction of shells, or you added any elements or flipped any normals since fixing them, Creo Simulate asks you if you want the element normals to be automatically aligned.
Fixing normals may change the direction of any pressure load or material orientation you create.
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