ON THE EFFECTIVE MODULUS OF COMPOSITE TUBULUS ELEMENT
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摘要: 针对任意壁厚的复合材料圆管构件的等效弹性模量和剪切模量提出了高阶理论计算方法, 它考虑了构件的横向剪切效应以及层合材料的三维本构关系, 并在相同壁厚条件下对三种缠绕方式( [0°/(±θ)n ]S, [ (±θ)n ]S 和[ 90°/(±θ)n ]S) 的等效模量进行了预测, 并且与经典层合板理论的预测结果进行了比较, 该方法可用于复合材料杆件结构的设计中。Abstract: The high order theory about the effective elastic modulus and shearing modulus for composite tubular element with arbitrary wall thickness was presented. The transverse shearing deformation effects and threedimensional elastic effects were included. The effective moduli were evaluated for three different layups( S, S and ]S) with the same wall thickness by high order theory and compared with the results evaluated by classic laminated theory. The effective modulus predicted by this theory can be used in the designing of composite tubular element structures.
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Key words:
- composite tubular element /
- composite thinwalled beam /
- effective modulus
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