To calculate the transverse stiffnesses, a replacement beam (1 m wide rectangular cross-section) with a length equal to the width of the panel (minus the gap and the distance to be ignored from the right and left) is produced. Its cross-sectional area, inertia and shear factor are determined on the condition that the right-end displacements of the replacement beam clamped at the left end are equal to the original panel under a unit of normal force, shear force and moment. Stiffnesses are calculated using these three equivalent cross-sectional data thus obtained.

The displacements of the original panel are obtained by a numerical approximation method, for which the panel is divided into at least 800 (maximum 0.5 cm long) parts along the horizontal axis of its cross-section. We then perform the calculation of the displacements by assuming a constant transverse cross section for each section:

New settings in Profiled plate / wall dialog: