Display of Stresses in RF‑LAMINATE for 90° Orthotropy Direction

The indices of the stresses from RF‑LAMINATE, such as σ_b,90, do not refer to the local surface axis system from RFEM, but to the orthotropy directions defined in Window "1.2 Material Properties" in RF‑LAMINATE; see Image 01.

1 Orthotropy Directions of Layers in RF-LAMINATE

The orthotropy directions can be displayed graphically by activating them in the Display navigator; see Image 02. The red arrow represents the "zero direction" of the stress; that is, the direction of the stress σ_b,0.

2 Graphical Display of Orthotropy Directions

The colors of the arrows can be adjusted within the display properties (category General, Axis System, Surface Axis Systems x, y, z [orthotropy directions]); see Image 03.

3 Adjusting Colors of Axis Systems

Thus, the stress σ_b,0 in this direction applies to each orthotropy direction of a layer defined in RF‑LAMINATE, and σ_b,90 applies to the stress transverse to the defined orthotropy directions.