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Publicações
Zhang, X., Duan, M.G. e Guedes Soares, C. (2018), “Lateral buckling critical force for submarine pipe-in-pipe pipelines”, Applied Ocean Research, Vol. 78, pp. 99 -109
The lateral buckling critical force of a submarine pipe-in-pipe pipeline with symmetrical initial imperfection on soft foundation is determined. The effects of initial imperfections shape, out-of-straightness, soil parameters as well as lateral nonlinear pipe-soil interaction, and structure parameters (stiffness ratio of inner pipe to outer pipe and clearance between inner and outer pipes) are discussed. A simple formula considering the above factors is proposed to determine the lateral buckling critical force of submarine pipe-in-pipe pipelines based on dimensional analysis and numerical results. The accuracy of the presented formula is shown by a case study.
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