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[材料模型] element78单元的理论背景是什么?

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发表于 2008-12-12 18:18:34 | 显示全部楼层 |阅读模式 来自 北京
Element 78
Thin-walled Beam in Three Dimensions without Warping
This is a simple, straight beam element with no warping of the section, but includes twist. The default
cross section is a thin-walled, circular, closed-section beam. You can specify alternative closed cross
sections through the BEAM SECT parameter.

这是marc中对element78的解释,请问一下,这个单元的理论背景是什么?
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