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- W2357630724 abstract "In this paper, a buckling problem of a linear elastic circular rod with pin edges in rigid curved wellbore was studied. The friction effect between the rod and the wall of the well was neglected. The rod was assumed to be laid on the lower side of the wellbore before buckling. The geometrical compatibility condition of the rod was analyzed. The buckling curv ature of the rod the strain energy and the potential of the external forces were derived. The principle of minimum potential energy was used to derive the governing differential equation and corresponding boundary conditions. The finite element method with beam elements was employed to obtain the critical loads and the deflection curves of the rod in buckling. The result shows that the critical load increases with the increasing of the self-weight of the rod and the radius of the curved wellbore. The deflection curve is a sinusoidal for the rod with a zero self-weight. While it is found to be oscillating for the rod with a non-zero self-weight, and the oscillation is mainly distributed near the top of the rod." @default.
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- W2357630724 date "2002-01-01" @default.
- W2357630724 modified "2023-09-23" @default.
- W2357630724 title "Buckling Problems of Circular Rod in Curved Wellbore" @default.
- W2357630724 hasPublicationYear "2002" @default.
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