|کد مقاله||کد نشریه||سال انتشار||مقاله انگلیسی||ترجمه فارسی||نسخه تمام متن|
|1724974||1520666||2016||8 صفحه PDF||سفارش دهید||دانلود رایگان|
• An 3D analytical model for sandwich pipe systems has been proposed.
• Our predictions are agreement with the results of FEM.
• Our solution provides a benchmark for numerical and approximate solutions
A three-dimensional analytical model is presented to calculate the stress and deformation of a sandwich pipe (SP) system subjected to linearly varying external pressures. Based on a stress function method, an analytical solution for a thick-walled pipe was researched, and then an analytical solution for a SP system was obtained according to the boundary and continuity conditions of stress and displacement. Furthermore, the analytical solution of a SP system was verified by comparing with finite element method (FEM). The results indicate that the stresses from present method (PM) are in a good agreement with that from FEM. Finally, our researches provide a benchmark for approximate or numerical solutions, and are beneficial to evaluate the safety and integrality of SP systems.
Journal: Ocean Engineering - Volume 124, 15 September 2016, Pages 298–305