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Development of a finite element program incorporating advanced element types.

机译：开发包含高级元素类型的有限元程序。

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摘要

Scope and method of study. Finite Elements is an advanced method which is being used by engineers and researchers for the calculation of general field problems. Many software packages are available to make this field easier. Different concepts of integration are used to calculate the stiffness matrices for various elements. The primary objective of this study was the development of a finite element analysis computer program using advanced finite element formulation techniques. The FEA program is capable of determining the beam deflections when a static and dynamic loading is applied. This program is written in a computer programming language known as Matlab.;Findings and conclusions. A FEA program for the solution of a mesh of advanced finite elements is proposed in Matlab. This program is capable of generating displacement fields and contour plots for the structural systems. Isoparametric elements are used to solve the element stiffness matrices for all selected elements and Gaussian Quadrature is used to numerically integrate. The Gauss Elimination solution technique is used to solve for structural displacements. Structural displacements are found to be coherent for different types of elements. Maximum tip deflection indicates that the linearly interpolated elements are stiffer than the quadratic interpolated elements.
机译：研究范围和方法。有限元是工程师和研究人员用于计算一般现场问题的一种高级方法。许多软件包可以使该领域变得更容易。积分的不同概念用于计算各种元素的刚度矩阵。这项研究的主要目的是使用先进的有限元公式化技术开发有限元分析计算机程序。当施加静态和动态载荷时，FEA程序能够确定梁的挠度。该程序是用称为Matlab的计算机编程语言编写的；发现和结论。在Matlab中提出了用于求解高级有限元网格的FEA程序。该程序能够为结构系统生成位移场和轮廓图。等参单元用于求解所有选定单元的单元刚度矩阵，而高斯正交用于数值积分。高斯消除解决方案技术用于解决结构位移。发现结构位移对于不同类型的元素是连贯的。尖端最大挠度指示线性插值元素比二次插值元素更硬。

著录项

  • 作者

    Iqbal, Rameez.;

  • 作者单位

    Oklahoma State University.;

  • 授予单位 Oklahoma State University.;
  • 学科 Engineering Civil.
  • 学位 M.S.
  • 年度 2009
  • 页码 107 p.
  • 总页数 107
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 建筑科学;
  • 关键词

  • 入库时间 2022-08-17 11:38:30

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