Why are the circular steel profiles blocked in the SHAPE-THIN library?


Circular profiles are blocked in the SHAPE-THIN profile library because they represent relatively solid cross-sections, and therefore cannot be calculated according to the theory for thin-walled cross-sections. A round bar can only be roughly modeled as a rectangular element. Such cross-sections should, therefore, be calculated as solid cross-sections in the SHAPE-THIN program.

To simplify matters, it would be possible to define circular cross-sections in SHAPE-THIN as pipes with large wall thickness.


Round bar Flat bar Rail Solid cross-section

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Cross-Sections Thin-Walled

Stand-Alone Program

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

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