Finite Element Transient Dynamic Analysis of Laminated Composite Pretwisted Rotating Plates Subjected to Impact
Finite Element Transient Dynamic Analysis of Laminated Composite Pretwisted Rotating Plates Subjected to Impact
复制标题
层压复合材料预扭旋转板冲击冲击有限元瞬态动力分析
DOI：
10.1533/cras.1998.0085
复制
发表时间：
1998
期刊：
影响因子：
--
通讯作者：
P. Sinha
中科院分区：
文献类型：
--
作者：
A. Karmakar;P. Sinha
本文用瞬态动力有限元法研究了复合材料层合预扭转旋转板受中心冲击的响应。本文提出了一种九节点三维退化复合材料壳单元。考虑了横向剪切变形和转动惯量的影响。有限元模型是基于拉格朗日的运动方程和调查进行了中等转速的科里奥利效应可以忽略不计。利用修正的赫兹接触定律计算了冲击器与层合板之间的接触力。研究了扭转角、旋转速度、层合板构型和预锥角对预扭转旋转板冲击响应的影响。
Abstract In this paper a transient dynamic finite element analysis is presented to study the response of centrally impacted laminated composite pretwisted rotating plates. A nine noded three-dimensional degenerated composite shell element is developed and used for the present analysis. Effects of transverse shear deformation and rotary inertia are included. The finite element model is based on Lagrange's equation of motion and the investigation is carried out for moderate rotational speeds for which the Coriolis effect is negligible. The modified Hertzian contact law is utilized to compute the contact force between the impactor and the laminated plate. Parametric studies are performed to investigate the effects of angle of twist, rotational speed, laminate configuration and precone angle on the impact response of pretwisted rotating plate.