Stability of pinned-rotationally restrained arches

The article aims to find the buckling loads for pinned–rotationally restrained shallow circular arches in terms of the rotational end stiffness, geometry and material distribution. The loading is a concentrated vertical force placed at the crown. A geometrically nonlinear model is presented which re...

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Main Author: Kiss László Péter
Format: Article
Language:English
Published: Serbian Society of Mechanics & Mathematical Institute of the Serbian Academy of Sciences and Arts, Belgrade 2021-01-01
Series:Theoretical and Applied Mechanics
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/1450-5584/2021/1450-55842000010K.pdf
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author Kiss László Péter
author_facet Kiss László Péter
author_sort Kiss László Péter
collection DOAJ
description The article aims to find the buckling loads for pinned–rotationally restrained shallow circular arches in terms of the rotational end stiffness, geometry and material distribution. The loading is a concentrated vertical force placed at the crown. A geometrically nonlinear model is presented which relates not only the axial force but also the bending moment to the membrane strain. The nonlinear load-strain relationship is established between the strain and load parameters. This equation is then solved and evaluated analytically. It turns out that the stiffness of the end-restraint has, in general, a significant effect on the lowest buckling load. At the same time, some geometries are not affected by this. As the stiffness becomes zero, the arch is pinned-pinned and as the stiffness tends to infinity, the arch behaves as if it were pinned-fixed and has the best load-bearing abilities.
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spelling doaj.art-bd14e0a9fc9a457bbba3a05fa934be0f2022-12-21T18:44:55ZengSerbian Society of Mechanics & Mathematical Institute of the Serbian Academy of Sciences and Arts, BelgradeTheoretical and Applied Mechanics1450-55842406-09252021-01-01481395110.2298/TAM200402010K1450-55842000010KStability of pinned-rotationally restrained archesKiss László Péter0Institute of Applied Mechanics, University of Miskolc, Miskolc-Egyetemváros, HungaryThe article aims to find the buckling loads for pinned–rotationally restrained shallow circular arches in terms of the rotational end stiffness, geometry and material distribution. The loading is a concentrated vertical force placed at the crown. A geometrically nonlinear model is presented which relates not only the axial force but also the bending moment to the membrane strain. The nonlinear load-strain relationship is established between the strain and load parameters. This equation is then solved and evaluated analytically. It turns out that the stiffness of the end-restraint has, in general, a significant effect on the lowest buckling load. At the same time, some geometries are not affected by this. As the stiffness becomes zero, the arch is pinned-pinned and as the stiffness tends to infinity, the arch behaves as if it were pinned-fixed and has the best load-bearing abilities.http://www.doiserbia.nb.rs/img/doi/1450-5584/2021/1450-55842000010K.pdfarchbucklingstiffnesssnap-through
spellingShingle Kiss László Péter
Stability of pinned-rotationally restrained arches
Theoretical and Applied Mechanics
arch
buckling
stiffness
snap-through
title Stability of pinned-rotationally restrained arches
title_full Stability of pinned-rotationally restrained arches
title_fullStr Stability of pinned-rotationally restrained arches
title_full_unstemmed Stability of pinned-rotationally restrained arches
title_short Stability of pinned-rotationally restrained arches
title_sort stability of pinned rotationally restrained arches
topic arch
buckling
stiffness
snap-through
url http://www.doiserbia.nb.rs/img/doi/1450-5584/2021/1450-55842000010K.pdf
work_keys_str_mv AT kisslaszlopeter stabilityofpinnedrotationallyrestrainedarches