Buckling of composite FRP structural plates using the complex finite strip method

✍ Scribed by Hossein Amoushahi; Mojtaba Azhari

• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 738 KB
• Volume: 90
• Category: Article
• ISSN: 0263-8223
• DOI: 10.1016/j.compstruct.2009.02.006

✦ Synopsis

A finite strip method is presented to predict local, distortional, and lateral buckling of composite fiber reinforced plastic (FRP) structural plates. Each plate may be subjected to a combination of longitudinal compression, longitudinal in-plane bending, or shear stress. A sinusoidal function is assumed in the longitudinal direction for a buckling mode of whatever type and a polynomial function is used in the transversal direction. The critical stress and critical moment of I-shape and box and channel sections under bending and uniform loading are obtained by solving an eigenvalue problem. Using this solution technique, a simple expression is developed for prediction of I-shape section beams' buckling stresses in three design curves. The critical stresses for different E x =E y values are calculated using the design curves.