Results 1 to 10 of about 567,993 (282)

Strength of Steel Shell Cylindrical Panels Reinforced with an ‎Orthogonal Grid of Stiffeners [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2022
The paper presents an approach to the strength analysis in steel cylindrical panels reinforced from the concave side with an orthogonal grid of stiffeners. A mathematical model of the Timoshenko (Mindlin – Reissner) type is used.
Alexey Semenov
doaj   +1 more source

Buckling of Shell Panels Made of Fiberglass and Reinforced with ‎an Orthogonal Grid of Stiffeners [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
The paper presents an approach to the stress-strain and buckling analysis in fiberglass cylindrical and conical panels reinforced from the concave side with an orthogonal grid of stiffeners.
Alexey Semenov
doaj   +1 more source

Muszle – zawieszki – amulety we wczesnym średniowieczu z terenu Polski na przykładzie znalezisk z Kruszwicy

open access: yesSlavia Antiqua, 2023
In this article, the author takes a closer look at the finds of sea shell ornaments in the early Middle Ages, based on artefacts discovered at two sites (Nos. 2 and 4) in Kruszwica.
Aldona Kurzawska, Anna Głód
doaj   +1 more source

Buckling of Steel Conical Panels Reinforced with Stiffeners

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2023
Conical shells and their panels are important elements of building structures, but have not been studied sufficiently. This paper explores buckling of truncated steel conical panels reinforced with an orthogonal grid of stiffener plates.
Alexey A. Semenov   +2 more
doaj   +1 more source

Method of strength analysis for doubly-curved stiffened orthotropic shells by various strength theories [PDF]

open access: yesFME Transactions, 2023
The paper proposes a method of strength analysis for materials of thin-walled shell structures reinforced with stiffeners. The shells under consideration were made of orthotropic materials.
Semenov Alexey A.
doaj  

Continuation Methods for Nonlinear Flutter

open access: yesAerospace, 2016
Continuation methods are presented that are capable of treating frequency domain flutter equations, including multiple nonlinearities represented by describing functions.
Edward E. Meyer
doaj   +1 more source

Pecan shell by-products—phenolic compound contents and antimicrobial properties

open access: yesAIMS Agriculture and Food, 2020
Pecans are a popular nut throughout the world. The USA produces several million kg/yr of pecan kernels and shells. Pecan kernels have high phenolic compound content and pecan shells have even higher phenolic concentrations than the kernels. High phenolic
Chiao Ying Huang   +5 more
doaj   +1 more source

Microstructural Mapping of Arctica islandica Shells Reveals Environmental and Physiological Controls on Biomineral Size

open access: yesFrontiers in Earth Science, 2022
The shells of long-lived bivalves record environmental variability in their geochemical signatures and are thus used extensively in marine high-resolution paleoclimate studies.
Nils Höche   +3 more
doaj   +1 more source

On the wave dynamics in damaged shells interacting with the volume of the cavitating liquid

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2016
We study the details of shock front propagation in the system of deformable medium (shells) with damages and two-phase liquid with gas or steam bubbles. We develop the models for the nonlinear processes of media interacting taking into account the phase ...
Vladimir A Petushkov
doaj   +1 more source

Fluctuations of the Vestfonna ice margin at Brageneset, Nordaustlandet, Svalbard, after the last glacial maximum [PDF]

open access: yesBulletin of the Geological Society of Finland, 1995
Four radiocarbon datings of shells of Mya truncata and Saxicava arctica from the till of the end-moraine of the advance of Vestfonna against Brageneset, Nordaustlandet, between AD 1861 and 1899, gave ages between 8300 BP and 8700 BP.
J.J. Donner, R.G. West
doaj   +1 more source

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