NDLI: Dynamic Analysis of Prestressed Cables with Uncertain Pretension

Content Provider	Springer Nature Link
Author	Sofi, Alba Bori, Guido Muscoli, Giuseppe
Copyright Year	2002
Abstract	This paper deals with finite element dynamic analysis of prestressed cables with uncertain pretension subjected to deterministic excitations. The theoretical model addressed for cable modeling is a two-dimensional finite-strain beam theory, which allows us to eliminate any restriction on the magnitude of displacements and rotations. The dynamic problem is formulated by referring the motion to the inertial frame, which leads to a simple uncoupled quadratic form for the kinetic energy. The effect of the externally applied stochastic pretension is approximately described by means of an uncertain ‘axial’ component of stress resultant, which is assumed constant along the cable in its dead load configuration. The so-called improved perturbation approach is employed to solve this stochastic problem, obtaining two coupled systems of nonlinear deterministic ordinary differential equations, governing the mean value and deviation of response. An efficient and accurate iterative procedure is proposed to obtain the solution of these equations. In order to investigate the influence of random pretension on structural response, few numerical applications are presented and results are discussed.
Starting Page	67
Ending Page	84
Page Count	18
File Format	PDF
ISSN	00256455
Journal	Meccanica
Volume Number	37
Issue Number	1-2
e-ISSN	15729648
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2002-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Mechanics Mechanical Engineering Automotive and Aerospace Engineering, Traffic Civil Engineering
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Condensed Matter Physics Mechanical Engineering

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