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Free vibration analysis of delaminated composite beams

机译:分层复合梁的自由振动分析

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摘要

Free vibration analysis of a laminated beam with delaminations is presented using a layerwise theory. Equations of motion are derived from the Hamilton's principle, and a finite element method is developed to formulate the problem. Numerical results are obtained and compared with those of other theories addressing the effects of the lamination angle, location, size and number of delamination on vibration frequencies of delaminated beams. It is found that a layerwise approach is adequate for vibration analysis of delaminated composites.
机译:使用分层理论对具有分层的层压梁的自由振动进行了分析。运动方程式是从汉密尔顿原理导出的,并开发了一种有限元方法来解决这个问题。获得了数值结果,并将其与其他理论结果进行了比较,这些理论研究了层压角度,分层的位置,大小和数量对分层梁的振动频率的影响。发现分层方法足以用于分层复合材料的振动分析。

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