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 language | English (US) |
---|---|
Pages (from-to) | 567-575 |
Number of pages | 9 |
Journal | Computers and Structures |
Volume | 69 |
Issue number | 5 |
DOIs | |
State | Published - Jan 1 1998 |
Keywords
- Composite materials
- Layered beam
- Three-dimensional stress recovery
ASJC Scopus subject areas
- Computer Science Applications
- Computational Mechanics