期刊
COMPOSITE STRUCTURES
卷 118, 期 -, 页码 392-402出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2014.08.018
关键词
Laminated composites; Refined Zigzag Theory; Doubly curved shell element; Reduced integration; Small deformations
资金
- Joint DOD/DOE Munitions Technology Development Program (JMP)
In the present paper a generalization of the Refined Zigzag Theory (RZT) to doubly-curved multilayered structures is proposed. The displacement field characteristic of Naghdi's shell model is enriched with RZT kinematics and a four-node shell finite element is formulated. Assumed Natural Strain (ANS) strategy is employed to overcome shear locking and Enhanced Assumed Strain (EAS) technique is applied to alleviate membrane locking and bending locking. For efficiency purpose, a one-point quadrature rule is used for the in-plane integration and hourglass stabilization is introduced. Finally, several numerical examples, involving static analysis of thick as well as thin shells, are performed to demonstrate the efficiency and accuracy of the proposed shell finite element. Published by Elsevier Ltd.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据