FAQ 000394 ZH

建模 | 结构 SHAPE-THIN

Why are the cross-sections for round steel bars locked in the library of SHAPE-THIN?

回答

Circular profiles are locked in the cross-section database in SHAPE-THIN because they basically represent solid sections, and thus they cannot be calculated according to the theory for thin-walled sections. A round bar, for example, can hardly be modeled by a rectangular element or a polygonal chain. Therefore, these cross-sections should be calculated as solid sections (SHAPE-MASSIVE)

For the definition of circular cross-sections in SHAPE-THIN, you can simplify it by using pipes with a high wall thickness. 

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截面属性 薄壁截面
SHAPE-THIN 8.xx

截面设计软件

开口和闭口薄壁截面的截面属性,应力分析和塑性设计