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Study of the effect of in-plane and interlaminar stresses on damping in fluid-filled laminated composite cylinders

机译:平面内和层间应力对充液层压复合材料圆柱体阻尼影响的研究

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摘要

The modal strain energy method is used in conjunction with a three-dimensional finite element analysis in the characterization of the effects of in-plane and interlaminar stresses in fluid-filled composite laminate cylindrical shells. A semi-analytical, 8-noded isoparametric finite element, which includes both the symmetric and antisymmetric modes in the circumferential direction, is used in the analysis. The effects of fiber angle, contained fluid height, size parameter of the shell, and stacking sequence on the contribution of in-plane and interlaminar stresses to the overall system damping in fluid-filled, composite laminate cylindrical shells are studied.
机译:模态应变能方法与三维有限元分析一起用于表征流体填充的复合材料层合圆柱壳中的面内应力和层间应力的影响。在分析中使用了半解析的8节点等参有限元,它在圆周方向上同时包含对称模式和反对称模式。研究了纤维角度,所含流体高度,壳的尺寸参数以及堆垛顺序对平面内和层间应力对填充流体的复合层合圆柱壳整体系统阻尼的影响。

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