首页> 外文期刊>Composite Structures >Refined shell finite elements based on RMVT and MITC for the analysis of laminated structures
【24h】

Refined shell finite elements based on RMVT and MITC for the analysis of laminated structures

机译:基于RMVT和MITC的薄壳有限元分析叠层结构

获取原文
获取原文并翻译 | 示例
           

摘要

In this paper, we present some advanced shell models for the analysis of multilayered structures in which the mechanical and physical properties may change in the thickness direction. The finite element method showed successful performances to approximate the solutions of the advanced structures. In this regard, two variational formulations are available to reach the stiffness matrices, the Principle of Virtual Displacement (PVD) and the Reissner Mixed Variational Theorem (RMVT). Here we introduce a strategy similar to MITC (Mixed Interpolated of Tensorial Components) approach, in the RMVT formulation, in order to construct an advanced locking-free finite element. Moreover, assuming the transverse stresses as independent variables, the continuity at the interfaces between layers is easily imposed. We show that in the RMVT context, the element exhibits both properties of convergence and robustness when comparing the numerical results with benchmark solutions from literature.
机译:在本文中,我们提出了一些用于多层结构分析的高级壳体模型,其中,机械和物理特性可能会在厚度方向上发生变化。有限元方法显示出成功的性能,可以近似高级结构的解。在这方面,有两种变式公式可用于获得刚度矩阵,即虚拟位移原理(PVD)和Reissner混合变分定理(RMVT)。在这里,我们在RMVT公式中引入类似于MITC(张量分量的混合插值)方法的策略,以构造高级的无锁定有限元。而且,假定横向应力为自变量,则容易施加层之间的界面处的连续性。我们显示,在RMVT上下文中,当将数值结果与文献中的基准解决方案进行比较时,该元素展现出收敛性和鲁棒性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号