Real Geometrical Imperfection of Bow-String Arches—Measurement and Global Analysis
Applied Sciences (Switzerland), 2020 In order to analyse the buckling behaviour of existing bow-string arch bridges, it is necessary to deal with the imperfections that influence the global stability of their superstructures. Direct quantification of the material imperfections represents an
Józef Gocal +2 more
exaly +3 more sources
Most adverse geometrical imperfections of steel spherical shells
Budownictwo i Architektura, 2014 Steel, spherical shells subjected to an external pressure are exposed to the loss of stability and such a phenomenon determines the global resistance of such shells.
Paweł Błażejewski +1 more
doaj +3 more sources
Transverse and vertical cracking behavior of railway rails due to geometrical imperfections and bending [PDF]
Scientific ReportsRail flaws and unexpected failures occurred at a quick pace as a result of the rapid growth of high-speed and heavy-haul railroads. It is of the utmost importance to prevent a situation like this since any possible breakdown of a rail carries the ...
Memduh Karalar +3 more
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Analysis of load capacity of roof trusses with imperfections and the issue of equivalent load adoption [PDF]
Acta Scientiarum Polonorum. Architectura, 2021 The internal forces and stresses were analyzed and utilization of the design resistance in selected members of the roof structure with local and global geometrical imperfections was evaluated. Values of these imperfections were based on the information
Grzegorz Gremza, Jan Zamorowski
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On the method of calculation of buckling and post-buckling behavior of laminated shells with small arbitrary imperfections [PDF]
Acta Scientiarum Polonorum. Architectura, 2021 In the present paper the variant of computational methods of stability and initial post-buckling behavior of isotropic shells was generalized with respect to laminated composite shells. Using methods of the asymptotic analysis of the Timoshenko–Mindlin
Mykola Semenyuk +2 more
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Post-Buckling Behaviour of Steel Structures with Different Types of Imperfections
Applied Sciences, 2022 In this paper, the stability of steel members with a complex initial geometrical imperfection pattern are analysed. This issue is extremely important in the case of slender structures, characterised by multiple close critical loads and modal interactions,
Katarzyna Rzeszut
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Rationally-Based Structural Design of Welded Plate Panels
Metals, 2021 This study predicts the behavior of welded plate panels (unstiffened plates) with different geometrical properties (slenderness ratio and aspect ratio) in order to address a rational structural design procedure, as these parameters are of great ...
Ahmed Hammad +3 more
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Impact of truss girder geometrical imperfections on roof bracing load [PDF]
MATEC Web of Conferences, 2019 The author has presented in this paper his own experimental research on the maximum value and distribution of load in transverse roof bracing caused by a planar truss girder with geometrical imperfections.
Michał Piątkowski
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Geometry symmetry-free and higher-order optical bound states in the continuum
Nature Communications, 2021 Ensuring robustness of bound states in the continuum usually relies on precise control of geometrical symmetries, which are quite susceptible to fabrication imperfections.
Qingjia Zhou +6 more
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Creating synthetic spaces for higher-order topological sound transport
Nature Communications, 2021 The authors create synthetic dimensions in acoustic crystals composed of cavity arrays, strongly coupled through modulated channels. They provide evidence for 1D and 2D dynamic topological pumping, and show that the higher-order topological sound ...
Hui Chen +7 more
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