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The previous paragraph showed the general principle of calculating cross-section properties using two distinct parts. In addition to these parts, SCIA Engineer also takes into account specific overrulings of properties, for example in case the 2D FE Method is used, or in case a cross-section is taken from the Profile Library etc.
The following diagram shows the complete calculation procedure as used in SCIA Engineer.
By default, for Thick-walled sections the 2D FE Method is activated for Torsional analysis, however this can be de-activated by the user leading to the Simplified Torsion analysis.
In the subsequent paragraphs of this chapter each item of the above diagram is described in detail.