Coupled Bending and Twisting of Thin-Walled Composite Beamsby Lawrence C. Bank, Catholic Univ of America, Washington, United States,
Emmanuel Cofie, Catholic Univ of America, Washington, United States,
Abstract: Thin-walled open-section composite material beams of the T, I and J geometries are routinely used as stiffeners for structural components in aerospace vehicles (Starnes et al, 1985). In certain applications the flange and web elements of the beam may need to be constructed of anisotropic panels of composite materials (Stein, 1988). An analytical method is presented in this paper to perform preliminary hand-calculation analysis of open-section composite beams that are composed of flanges and webs having anisotropic layups. The predictions of the one-dimensional analytical model are compared with two-dimensional finite-element results using the NISA COMPOSITES finite element code.
Subject Headings: Composite beams | Finite element method | Composite materials | Flanges | Web beams | Webs (structure) | Anisotropy | Two-dimensional models
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