Physical and Geometrical Nonlinear Dynamic Analysis of Beams on Foundations under Moving Loads
Publication: Journal of Engineering Mechanics
Volume 146, Issue 1
Abstract
This paper is dedicated to the nonlinear finite-element analysis of the dynamic behavior of beams on foundations under moving loads. The goal of the study is to generalize, for more realistic foundation behaviors, the analyses performed in other studies. The foundations are considered to be nonlinear with different tensile and compressive behaviors. Tensionless foundations lead to large beam deflections. Accordingly, the finite-element formulation of the problem is derived taking into account the geometrical nonlinear behavior of the beam. Critical velocities of the moving loads are computed, and the effect of the physical and geometrical nonlinear behavior of the system on their values is analyzed.
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Published In
Journal of Engineering Mechanics
Volume 146 • Issue 1 • January 2020
Copyright
©2019 American Society of Civil Engineers.
History
Received: Nov 15, 2018
Accepted: May 3, 2019
Published online: Nov 11, 2019
Published in print: Jan 1, 2020
Discussion open until: Apr 11, 2020
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