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A Three-dimensional Stress Recovery Procedure for Composite Materials
- Source :
- Computers & Structures. 69:567-575
- Publication Year :
- 1998
- Publisher :
- Elsevier BV, 1998.
-
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.
- Subjects :
- business.industry
Mechanical Engineering
Gauss
Structural engineering
Mixed finite element method
Finite element method
Computer Science Applications
Stress (mechanics)
Stress field
Modeling and Simulation
Recovery procedure
General Materials Science
Composite material
business
Smoothing
Civil and Structural Engineering
Mathematics
Extended finite element method
Subjects
Details
- ISSN :
- 00457949
- Volume :
- 69
- Database :
- OpenAIRE
- Journal :
- Computers & Structures
- Accession number :
- edsair.doi.dedup.....db12ba8b45482712953fbbfb0f2035a6
- Full Text :
- https://doi.org/10.1016/s0045-7949(98)80095-3