Modifications to beam theory for bending and twisting of open-section composite beams — experimental verification

The experimental verification of a modified beam theory for open-section, thin-walled, anisotropic composite beams is described. Symmetric and anti-symmetric glass/polyester I-beams were fabricated by hand-layup and vacuum bag techniques. These beams were supported as cantilevers and tested under tr...

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Published in:Composite structures 1992, Vol.22 (3), p.169-177
Main Authors: Smith, S.J., Bank, L.C.
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Physics
Solid mechanics
Static elasticity (thermoelasticity...)
Structural and continuum mechanics
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container_title Composite structures
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description The experimental verification of a modified beam theory for open-section, thin-walled, anisotropic composite beams is described. Symmetric and anti-symmetric glass/polyester I-beams were fabricated by hand-layup and vacuum bag techniques. These beams were supported as cantilevers and tested under trip loads (transverse loading) and end moments (pure bending). Anisotropically induced twist and out-of-plane lateral deflection as well as in-plane transverse deflection (bending deflection) were measured. Comparisons with finite-element analysis using a commercial code are also presented. Good correlation was found between the experimental, finite-element analysis, and the theory for the twist and bending deflection of the beams. Out-of-plane deflections were found to be too small to be measured accurately.
doi_str_mv 10.1016/0263-8223(92)90004-V
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subjects Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Physics
Solid mechanics
Static elasticity (thermoelasticity...)
Structural and continuum mechanics
title Modifications to beam theory for bending and twisting of open-section composite beams — experimental verification
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