Complete stress field in sandwich panels with a new triangular finite element of single-layer theory

M. Das, Atila Barut, E. Madenci, D. R. Ambur

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

An alternative to conventional three-dimensional solid elements or elements based on the layerwise (zig-zag) theory is an element based on a single-layer plate theory in which the weighted-average field variables capture the panel displacement and stress fields. This study presents a new triangular finite element for modeling thick sandwich panels based on a {3, 2}-order single-layer plate theory. It utilizes seven weighted-average field variables arising from the cubic and quadratic representations of the in-plane and transverse displacement fields, respectively. In order to satisfy the C1 interelement continuity requirement, this triangular sandwich element is developed by utilizing the hybrid energy functional.

Original languageEnglish (US)
Pages (from-to)2969-3005
Number of pages37
JournalComputer Methods in Applied Mechanics and Engineering
Volume194
Issue number27-29
DOIs
StatePublished - Jul 22 2005

Keywords

  • Finite element
  • Hybrid formulation
  • Sandwich construction
  • Single-layer theory

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • Mechanical Engineering
  • Physics and Astronomy(all)
  • Computer Science Applications

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