TY - JOUR ID - 21245 TI - An exact solution to the problems of flexo-poroelastic structures rested on elastic beds acted upon by moving loads JO - Scientia Iranica JA - SCI LA - en SN - 1026-3098 AU - Nikkhoo, A. AU - Tafakor, R. AU - Mofid, M. AD - Department of Civil Engineering, University of Science and Culture, Tehran, Iran. AD - Department of Civil Engineering, Sharif University of Technology, Tehran, Iran Y1 - 2020 PY - 2020 VL - 27 IS - 5 SP - 2326 EP - 2341 KW - Poroelastic beam-like structures KW - Dynamical analysis KW - Moving loads KW - Laplace transform method KW - Analytical approach DO - 10.24200/sci.2019.51365.2135 N2 - This paper aims to examine flexural vibrations of fully saturated poroelastic structureson an elastic bed subjected to moving point loads via an analytical solution. Using aflexural beam model in conjunction with the Biot’s poro-elasticity theory, the equationsof motion of the porous structure are derived. Using assumed mode method and Laplacetransform, the explicit expressions of displacement and pore pressure are obtained carefully.For a particular case, the predicted results are also compared with those of another workand a reasonably good agreement is achieved. The influences of the moving load velocity,permeability ratio, transverse stiffness of the foundation, viscosity of the pore fluid, andporosity on the maximum elasto-dynamic fields and pore pressure are conclusively discussed.The velocity pertinent to the maximum possible dynamic response is graphically determinedand the roles of influential parameters on this crucial factor are displayed. The present modelcould be easily extended to multi-layered poroelastic structures under moving loads. UR - https://scientiairanica.sharif.edu/article_21245.html L1 - https://scientiairanica.sharif.edu/article_21245_a8def2f958292e368c69f75737d77d3f.pdf ER -