Glass Fiber Reinforced Polymer Pultruded Members: Constitutive Model and Stability Analysis
Publication: Journal of Engineering Mechanics
Volume 130, Issue 8
Abstract
The increasingly widespread use of fiber-reinforced polymers as an alternative to conventional materials makes it necessary to formulate theoretical models which adequately evaluate the influence of the anisotropy of such composites on the structural behavior. While the cross section shapes adopted for compressed members are generally the same as in steel structures, the anisotropy which characterizes these polymers may reduce the critical loading threshold due to local buckling phenomena. A procedure to study the buckling of glass fiber reinforced polymer pultruded members by means of an homogenization approach is proposed here. A two-stage buckling model permits the determination of both global and local critical loads as explicit functions of the member geometry and its material behavior. These functions may be used for optimization of the shape of the above-mentioned members. Besides the model shows its reliability as it fits the results of experimental testson members with different slenderness ratios.
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Information
Published In
Journal of Engineering Mechanics
Volume 130 • Issue 8 • August 2004
Pages: 961 - 970
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: Mar 8, 2002
Accepted: Dec 17, 2003
Published online: Jul 15, 2004
Published in print: Aug 2004
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