A CURVED STIFFENER BEAM ELEMENT FOR LARGE DEFLECTION ANALYSIS OF COMPOSITE SHELLS
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摘要: 本文研究了加劲壳的非线性有限元分析方法,提出了一种梁元素来模拟加筋。该元素具有曲轴线,任意形状的薄壁剖面和任意铺层方式,与三维退化曲壳元素完全协调,相对于壳中面可以有偏心,所分析的结构可以是层合复合材料加劲壳或各向同性材料单层加劲壳。Abstract: The paper studies nonlinear F. E. analysis of stiffened shells, presenting beam element to simulate the stiffeners. The beam element has curved axis, thin-walled cross section with arbitrary shape and arbitrary layup, and is fully compatible with the shell element. Eccentricity is also accounted for. The material may be isotropic or composites.
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Key words:
- Curved thin-walled beam /
- Stiffened shell /
- Composite
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