Question about "ChElementShellANCF_3423.cpp" of Chrono

[wenhui luo]

Hello,

Recently, I created a project, and the element type in the application is "ChElementShellANCF_3423.cpp". I created a flat plate in the XZ plane.

When a force in the Y direction is applied, the calculation result has a large error. At the same time, I created a flat plate in the XY plane,

and when a force in the Z direction is applied, there is basically no error in the calculation. I want to know what causes this situation,

and how to improve it so that I can calculate the situation of the flat plate in the XZ plane.