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Nonlinear Equations of Motion of an Extensible Underground Pipeline: Derivation and Numerical Modeling

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Abstract

Slow motion of a pipeline modeled by a bent rod in a viscous medium is studied. It is assumed that the displacements of the axial line of the rod are finite and its strains are small. The mutual influence of the tensile axial force and transverse deflections is taken into account. Equations of motion are derived and some numerical examples are considered. An approximate estimate of stresses in the pipeline wall is given.

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Rukavishnikov, V.A., Tkachenko, O.P. Nonlinear Equations of Motion of an Extensible Underground Pipeline: Derivation and Numerical Modeling. Journal of Applied Mechanics and Technical Physics 44, 571–583 (2003). https://doi.org/10.1023/A:1024213527532

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  • DOI: https://doi.org/10.1023/A:1024213527532

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