A Study of Coupling the Boundary and Finite Element Methods in Two-Dimensional Elastostatics

Abstract

This report investigates the potential advantage of a combined boundary element-finite element solution approach by examining the behavior of coupled elastostatic domains. A theoretical investigation of coupling the displacement-based finite element method with the indirect boundary element method was conducted and the results were implemented within a microcomputer framework. It is believed that a combined finite element and boundary element computer program could reduce the high cost now associated with nonlinear finite element programs, but it is shown that further work is needed to make the boundary element method more effective. A quadratic, isoparametric boundary element, which would allow a better evaluation of accuracy and cost in the solution of coupled elastostatic problems, should be investigated. Additional keywords: Numerical analysis, Integral equations.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1984
Accession Number
ADA149619

Entities

People

  • J. V. Cox
  • T. A. Shugar

Organizations

  • Naval Facilities Engineering Service Center

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundary Element Methods
  • Boundary Value Problems
  • Civil Engineering
  • Computational Science
  • Computer Programs
  • Computers
  • Construction
  • Couplings
  • Differential Equations
  • Engineering
  • Environmental Protection
  • Equations
  • Finite Element Analysis
  • Integral Equations
  • Materials
  • Mechanics
  • Numerical Analysis

Fields of Study

  • Engineering

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)