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An experiment for determining the Euler load by direct computationA direct algorithm is presented for computing the Euler load of a column from experimental data. The method is based on exact inextensional theory for imperfect columns, which predicts two distinct deflected shapes at loads near the Euler load. The bending stiffness of the column appears in the expression for the Euler load along with the column length, therefore the experimental data allows a direct computation of bending stiffness. Experiments on graphite-epoxy columns of rectangular cross-section are reported in the paper. The bending stiffness of each composite column computed from experiment is compared with predictions from laminated plate theory.
Document ID
19880026676
Document Type
Conference Paper
Authors
Thurston, Gaylen A. (NASA Langley Research Center Hampton, VA, United States)
Stein, Peter A. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1986
Subject Category
STRUCTURAL MECHANICS
Meeting Information
Optical methods in composites(Keystone, CO)
Distribution Limits
Public
Copyright
Other