Influence of the Parameterization in the Interval Solution of Elastic Beams. (24th September 2014)

• Record Type: Journal Article
• Authors: Gabriele, Stefano; Varano, Valerio
• Other Names: Foliente Greg Academic Editor.
• Is Part Of: Journal of structures. Volume 2014(2014)
• Publication Date: 2014-09-24
• Subjects: Structural engineering -- Periodicals; Structural engineering; Electronic journals; Periodicals; 624.17
• DOI: 10.1155/2014/395213
• Languages: English
• ISSNs: 2356-766X

Abstract

Abstract : We are going to analyze the interval solution of an elastic beam under uncertain boundary conditions. Boundary conditions are defined as rotational springs presenting interval stiffness. Developments occur according to the interval analysis theory, which is affected, at the same time, by the overestimation of interval limits (also known as overbounding, because of the propagation of the uncertainty in the model). We suggest a method which aims to reduce such an overestimation in the uncertain solution. This method consists in a reparameterization of the closed form Euler-Bernoulli solution and set intersection.