Seismic hydro-dynamic analysis of pipes with internal and external fluid under nanoparticles as reinforcement phase
by Mansour Bagheri; Grzegorz Lesiuk; José António Fonseca De Oliveira Correia
International Journal of Hydromechatronics (IJHM), Vol. 3, No. 3, 2020

Abstract: One of the essential subjects for the pipeline in the sea is the existence of many earthquakes in the sea, and hence, the dynamic deflection of these structures is essential. Hydro-dynamic analysis of nanocomposite pipes with internal and external fluid is presented. The system is under the earthquake dynamic load and the final equations of are obtained utilising mathematical formulation with classic theory of shell and principle of Hamilton. Navier-Stokes relation is applied to obtain the internal and external fluid forces. Mori-Tanaka approach is utilised to calculate the effective characteristics of the pipe. The dynamic deflection is calculated utilising Newmark and differential quadrature method (DQM). The influences of different variables of nanoparticles volume fraction, boundary conditions, length to radius ratios, external and internal fluid are presented on the dynamic displacement of the system. From outcomes, it may be found that the dynamic displacement is enhanced in the existence of external and internal fluid. In addition, utilising nanoparticles in pipe decreases the dynamic displacement.

Online publication date: Tue, 29-Sep-2020

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