- Tytuł:
- The least squares stochastic finite element method in structural stability analysis of steel skeletal structures
- Autorzy:
-
Kamiński, M.
Szafran, J. - Powiązania:
- https://bibliotekanauki.pl/articles/265364.pdf
- Data publikacji:
- 2015
- Wydawca:
- Uniwersytet Zielonogórski. Oficyna Wydawnicza
- Tematy:
-
weighted least squares method
stochastic finite element method
generalized stochastic perturbation technique
stability problems
steel skeletal structures
technika zaburzeń
konstrukcja szkieletowa
analiza stabilności - Opis:
- The main purpose of this work is to verify the influence of the weighting procedure in the Least Squares Method on the probabilistic moments resulting from the stability analysis of steel skeletal structures. We discuss this issue also in the context of the geometrical nonlinearity appearing in the Stochastic Finite Element Metod equations for the stability analysis and preservation of the Gaussian probability density function employed to model the Young modulus of a structural steel in this problem. The weighting procedure itself (with both triangular and Dirac-type) shows rather marginal influence on all probabilistic coefficients under consideration. This hybrid stochastic computational technique consisting of the FEM and computer algebra systems (ROBOT and MAPLE packages) may be used for analogous nonlinear analyses in structural reliability assessment.
- Źródło:
-
International Journal of Applied Mechanics and Engineering; 2015, 20, 2; 299-318
1734-4492
2353-9003 - Pojawia się w:
- International Journal of Applied Mechanics and Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł