[논문]Postbuckling behavior of symmetrically laminated thin shallow circular arches

doi:10.1016/j.compstruct.2008.01.005

Postbuckling behavior of symmetrically laminated thin shallow circular arches

Composite structures, v.87 no.1, 2009년, pp.101 - 108

Abstract ▼ AI-Helper

AbstractThe large deflection behavior of a symmetrically laminated thin shallow circular arch subjected to a central concentrated load is studied using the Rayleigh–Ritz finite element method. The shape functions used in the finite element method maintain C1-continuity of the radial displacement (deflection) and C0-continuity of the tangential displacement, respectively.The nonlinear algebraic equations of equilibrium are solved to a high degree of accuracy using Taylor’s expansion technique in conjunction with the Newton–Raphson method. Nonlinear stability analysis provides accurate solutions for the symmetric and antisymmetric buckling of both pin-ended and fixed shallow arches. The stability of the symmetric deformation path is investigated for both pinned and fixed arches, and a detailed analysis is carried out at the point of bifurcation onto an asymmetric deformation path for a pinned symmetrically laminated shallow arch. The slope of this post-buckled path is also computed, and is shown to be accurate for deformations well beyond the point of bifurcation.

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참고문헌 (30)

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Postbuckling behavior of symmetrically laminated thin shallow circular arches

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