I defined several materials for my cross-section. SHAPE-THIN generates strange cross-section properties.

Answer

In the case of cross-section with several material, SHAPE‑THIN determines the ideal cross-section properties and statical moments. For this, the reference material is used, which is specified in the Calculation Parameters dialog box, tab Global Calculation Parameters (see figure).

Thus, the surface of the individual materials is recalculated to the surface of the reference material with n = Ei / Eref.

Keywords

ideal cross-section reference material composite cross section material

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Cross-Sections Thin-Walled
SHAPE THIN 9.xx

Stand-Alone Program

Properties and stresses of thin-walled and cold-formed cross-sections

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