A three-dimensional stress recovery procedure for composite materials

U. Galvanetto, C. Pellegrino, B. A. Schrefler

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

A three-dimensional stress recovery procedure is described in this paper. As usual, in the finite element method, we suppose to know a good approximation of the nodal values of the displacements; starting from the nodal displacements, we evaluate the strain components at Gauss points of a 27-node prismatic element, then the stress components at the same points. Stresses are finally projected to corner nodes with a smoothing procedure. The repeated application of such a procedure to a set of adjacent elements allows the construction of the stress field in a finite region of any deformed body. The proposed method finds its most natural application in the field of composite materials as shown in the numerical applications which reveal a good concordance of results with an equivalent three-dimensional finite element analysis.

Original languageEnglish (US)
Pages (from-to)567-575
Number of pages9
JournalComputers and Structures
Volume69
Issue number5
DOIs
StatePublished - Jan 1 1998

Keywords

  • Composite materials
  • Layered beam
  • Three-dimensional stress recovery

ASJC Scopus subject areas

  • Computer Science Applications
  • Computational Mechanics

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