ABSTRACT
Pipelines are the most efficient and safe means for gas and oil transportation over a long distance. The use of nanomaterials and nanoengineering can be considered for enhancing pipeline properties. Therefore, in this chapter, the dynamic response of an underwater nanocomposite submerged pipeline conveying fluid is studied. The structure is subjected to the dynamic loads caused by an earthquake, and the governing equations of the system are derived using a mathematical model via classic shell theory and Hamilton’s principle. The Navier–Stokes equation is employed to calculate the force due to the fluid in the pipe. As well, the effect of external fluid is modeled with an external force. The Mori–Tanaka approach is used to estimate the equivalent material properties of the nanocomposite. The dynamic displacement of the structure is extracted using the differential quadrature method and the Newmark method. The effects of different parameters, such as the silicon dioxide nanoparticle volume percent, the boundary conditions, the thickness-to-radius ratios, the length-to-radius ratios, the internal and external fluid pressures, and the earthquake intensity are discussed on the seismic response of the structure.
