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Wyszukujesz frazę "equilibrium paths" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
LNG tank in Świnoujście: nonlinear analysis of the tank dome elements behaviour
Autorzy:
Sobczyk, Bartosz
Powiązania:
https://bibliotekanauki.pl/articles/1573706.pdf
Data publikacji:
2020
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
ultimate capacity
local analysis
nonlinear equilibrium paths
finite element method (FEM)
Opis:
In this paper, the dome of a tank in the Świnoujście LNG terminal is analysed. Some of the rafter ribs at the connection with hangers were not mounted during construction of the tank dome. Therefore, it has become necessary to estimate its response, which has been done with the aid of some computational models of the dome, that have been created in the finite element method environment. Different local models are studied, aiming to recreate possible outermost conditions of the tank dome response, i.e. with or without composite action between steel and concrete parts of the tank dome. Static calculations with material and geometric nonlinearities are carried out on the computational models, enabling the creation of a load capacity envelope of the rafter with or without ribs. The obtained results are then used to decide if repair works need to be done and whether the missing ribs should be welded.
Źródło:
Polish Maritime Research; 2020, 4; 139-147
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Buckling and post-buckling behaviour of shallow – nearly flat cylindrical panels under axial compression
Autorzy:
Magnucka-Blandzi, E.
Magnucki, K.
Powiązania:
https://bibliotekanauki.pl/articles/201207.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
rectangular plate
cylindrical shell
elastic buckling
equilibrium paths
płyta prostokątna
powłoka cylindryczna
wyboczenie sprężyste
ścieżki równowagi
Opis:
The paper is devoted to buckling problem of axially compressed shallow cylindrical panels. Governing differential equations of the nonlinear theory of shallow cylindrical shells are analytically solved. Critical stresses and equilibrium paths of the panels with small curvatures are analytically studied. The formula of the critical stresses for almost flat, cylindrical panels is derived. The “shallowness” of the panel is given by the parameter α and formulae are derived for a range of this parameter. The range of values of sectorial angle for these panels is also defined.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2016, 64, 3; 655-658
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigations into the stability of thin-walled composite structures with top-hat cross-sections
Autorzy:
Czajka, Błażej
Powiązania:
https://bibliotekanauki.pl/articles/2204593.pdf
Data publikacji:
2023
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
buckling
post-buckling equilibrium paths
critical loads
thin-walled composite structures
finite element method
FEM
experimental tests
Opis:
This paper presents a study of compressed thin-walled composite columns with an open cross-section. The tested specimens with a top-hat cross-section were made of CFRP material. Two arrangements of composite layers [0/-45/45/90]s and [90/0/90/0]s were compared. The paper focuses on the buckling phenomenon and the determination of the critical loads of the structure. It includes both numerical analyses using the finite element method (FEM) and validation on real specimens made using the autoclave technique. A comparison is made between the results obtained by both methods. The critical forces of the real specimens were determined using the P-wc3 approximation method. Both the evaluation of the buckling shape and the values of the critical forces showed a significant correlation between the experimental and numerical tests. This paper also compares the tested lay-ups.
Źródło:
Acta Mechanica et Automatica; 2023, 17, 3; 311--316
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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