Stability of pinned--rotationally restrained arches
Theoretical and applied mechanics, Tome 48 (2021) no. 1, p. 39
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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.
Classification :
74G60, 74B15
Keywords: arch, buckling, stiffness, snap-through
Keywords: arch, buckling, stiffness, snap-through
László Péter Kiss. Stability of pinned--rotationally restrained arches. Theoretical and applied mechanics, Tome 48 (2021) no. 1, p. 39 . doi: 10.2298/TAM200402010K
@article{10_2298_TAM200402010K,
author = {L\'aszl\'o P\'eter Kiss},
title = {Stability of pinned--rotationally restrained arches},
journal = {Theoretical and applied mechanics},
pages = {39 },
year = {2021},
volume = {48},
number = {1},
doi = {10.2298/TAM200402010K},
language = {en},
url = {http://geodesic.mathdoc.fr/articles/10.2298/TAM200402010K/}
}
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