Local buckling of fiber-reinforced polymeric structural members under linearly-varying edge loading — Part 1. Theoretical formulation

• Published in: Composite structures Vol. 41; no. 1; pp. 79 - 86
• Main Authors: Zureick, A., Shih, B.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 1998; Elsevier Science
• Subjects: Applied sciences; Buckling; Buildings. Public works; Exact sciences and technology; Fundamental areas of phenomenology (including applications); Mechanical properties; Physical properties; Physics; Polymer industry, paints, wood; Properties and testing; Solid mechanics; Static buckling and instability; Strength of materials (elasticity, plasticity, buckling, etc.); Structural analysis. Stresses; Structural and continuum mechanics; Technology of polymers; Finite element method; Fiber reinforced material; Numerical method; Thin walled beam; Buckling; Local effect; Composite material; Orthotropic material
• ISSN: 0263-8223; 1879-1085
• DOI: 10.1016/S0263-8223(98)00038-5

This paper presents a general solution to the problem of local buckling of doubly symmetric fiber-reinforced polymeric structural shapes subjected to linearly-varying edge loading. This solution is based upon the classical theory of orthotropic plates and accounts for the elastic restraint of various plate elements comprising the cross-section. The buckling equations for box and I-shape beams subjected to pure bending in one case and to uniform compression in another case are deduced as special cases from the present solution. Numerical results in the form of design charts are discussed and presented in a companion paper.