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Meshless Local Petrov-Galerkin (MLPG) Formulations for Analysis of Shell-like Structures (CROSBI ID 36000)

Prilog u knjizi | izvorni znanstveni rad

Sorić, Jurica ; Jarak, Tomislav Meshless Local Petrov-Galerkin (MLPG) Formulations for Analysis of Shell-like Structures // ECCOMAS Multidisciplinary Jubilee Symposium: New Computational Challenges in Materials, Structures, and Fluids / Eberhardsteiner, Josef ; Hellmich, Christian ; Mang, Herbert A. et al. (ur.). Berlin: Springer, 2009. str. 277-289

Podaci o odgovornosti

Sorić, Jurica ; Jarak, Tomislav

engleski

Meshless Local Petrov-Galerkin (MLPG) Formulations for Analysis of Shell-like Structures

Meshless computational strategies based on the local Petrov-Galerkin approach are proposed for the analysis of shell and plate structures. A fully displacement formulation is used in shell analysis, while a more efficient mixed algorithm is proposed for modelling of plate deformation responses. In both cases a concept of a three dimensional solid is applied. Discretization is carried out by using a moving least square approximation and simple polynomial functions. The Poisson’ s thickness locking is successfully eliminated in both formulations. In fully displacement approach, shear locking is minimized by raising the order of ap-proximation functions, and it is completely suppressed by using the inter-polation of the strain field in the mixed formulation. The numerical efficiency of the derived concepts is demonstrated by numerical examples.

MLPG, mixed approach, shell-like structures, locking

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Podaci o prilogu

277-289.

objavljeno

Podaci o knjizi

ECCOMAS Multidisciplinary Jubilee Symposium: New Computational Challenges in Materials, Structures, and Fluids

Eberhardsteiner, Josef ; Hellmich, Christian ; Mang, Herbert A. ; Periaux, Jacques

Berlin: Springer

2009.

978-1-4020-9230-5

Povezanost rada

Strojarstvo