Analýza ztráty stability tlačené výztuhy pomocí metody konečných prvků

Buckling analyses of compressed stiffener with finite element methods

přednáška

en

This article presents the research of effect of model imperfections on the local buckling of compressed stiffeners in finite element (FE) analyses. Improved FE models with imperfections provide more accurate simulations of thin-walled semi-monocoque structures, where natural curvatures of structures are insufficient. Main outcomes of these analyses are designs of practical types of imperfections with appropriate ratio values and demonstration of trends from graphic comparisons of results.

This article presents the research of effect of model imperfections on the local buckling of compressed stiffeners in finite element (FE) analyses. Improved FE models with imperfections provide more accurate simulations of thin-walled semi-monocoque structures, where natural curvatures of structures are insufficient. Main outcomes of these analyses are designs of practical types of imperfections with appropriate ratio values and demonstration of trends from graphic comparisons of results.

ztráta stability, napěťová analýza, metoda konečných prvků, výztuha, nedokonalost tvaru

buckling, stress analysis, finite element method, stiffener, imperfection

14.05.2018

Czech Academy of Sciences, Prague

konference Engineering Mechanics 2018, Svratka, ČR

373–376

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