Temat: limit load - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Analysis of brace stiffness influence on stability of the truss
Autorzy:: Krajewski, M.
Iwicki, P.
Powiązania:: https://bibliotekanauki.pl/articles/266180.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: buckling load
limit load
brace stiffness
imperfection
kratownica
analiza numeryczna
konstrukcje stalowe
Opis:: The paper is devoted to the numerical and experimental research of stability of a truss with side elastic supports at the top chord. The structure is a model of a real roof truss scaled by factor ¼. The linear buckling analysis and non-linear static analysis were carried out. The buckling length factor for the compressed top chord was calculated and the limit load for the imperfect truss shell model with respect to brace stiffness was obtained. The relation between brace normal force and loading of the truss is presented. The threshold stiffness of braces necessary to obtain the maximum buckling load was found. The truss load bearing capacity obtained from numerical analysis was compared with Eurocode 3 requirements.
Źródło:: International Journal of Applied Mechanics and Engineering; 2015, 20, 1; 97-108
1734-4492
2353-9003
Pojawia się w:: International Journal of Applied Mechanics and Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Plastic limit load of ellipsoidal pressure vessel head with nozzle under internal pressure loading
Autorzy:: Skopinsky, V. N.
Berkov, N. A.
Smetankin, A. B.
Powiązania:: https://bibliotekanauki.pl/articles/955284.pdf
Data publikacji:: 2013
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: metoda elementów skończonych
tworzywo sztuczne
plastyczność
shell intersection
elastic-plastic finite element analysis
plastic limit load
ellipsoidal head
nozzle connections
Opis:: A new method and numerical procedure for determining the plastic limit load in an ellipsoid-cylinder intersection using the elastic-plastic finite element analysis are presented. The proposed method is based on the maximum criterion of the rate of change of the relative plastic work. For the elastic-plastic analysis of the nozzle connections the 2D finite element method and plasticity theory with strain hardening are used. The results of the comparison of the plastic limit pressure obtained on the basis of different known criteria and the proposed criterion are presented. A parametric study of ellipsoidal heads with a nozzle under internal pressure loading was performed. The effects of nondimensional geometric parameters of shell intersection on the plastic limit pressure are discussed.
Źródło:: International Journal of Applied Mechanics and Engineering; 2013, 18, 4; 1263-1274
1734-4492
2353-9003
Pojawia się w:: International Journal of Applied Mechanics and Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: A numerical analysis of selected elastic-plastic fracture parameters for DEN(T) plates under plane strain conditions
Autorzy:: Graba, M.
Powiązania:: https://bibliotekanauki.pl/articles/264508.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: fracture mechanics
Q-stress
maximum stress
J-integral
CTOD
load-line displacement
limit loads
DEN(T)
mechanika pękania
maksymalne naprężenie
obciążenie
Opis:: This paper provides a numerical analysis of selected parameters of fracture mechanics for double-edge notched specimens in tension, DEN(T), under plane strain conditions. The analysis was performed using the elastic-plastic material model. The study involved determining the stress distribution near the crack tip for both small and large deformations. The limit load solution was verified. The J-integral, the crack tip opening displacement, and the load line displacement were determined using the numerical method to propose the new hybrid solutions for calculating these parameters. The investigations also aimed to identify the influence of the plate geometry and the material characteristics on the parameters under consideration. This paper is a continuation of the author’s previous studies and simulations in the field of elastic-plastic fracture mechanics.
Źródło:: International Journal of Applied Mechanics and Engineering; 2017, 22, 1; 49-80
1734-4492
2353-9003
Pojawia się w:: International Journal of Applied Mechanics and Engineering
Dostawca treści:: Biblioteka Nauki

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