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Stability Study of Cantilever‐Beams – Numerical Analysis and Analytical Calculation (LTB)
Author(s) -
Kraus Matthias,
Crişan NicolaeAndrei,
Wittor Björn
Publication year - 2021
Publication title -
ce/papers
Language(s) - English
Resource type - Journals
ISSN - 2509-7075
DOI - 10.1002/cepa.1539
Subject(s) - cantilever , buckling , structural engineering , critical load , bending moment , finite element method , eurocode , computation , bending , beam (structure) , instability , stability (learning theory) , numerical analysis , computer science , mathematics , engineering , mechanics , mathematical analysis , physics , algorithm , machine learning
According to Eurocode, the computation of bending strength for steel cantilever beams is a straightforward process. The approach is based on an Ayrton‐Perry formula adaptation of buckling curves for steel members in compression, which involves the computation of an elastic critical buckling load for considering the instability. NCCI documents offer a simplified formula to determine the critical bending moment for cantilevers beams with symmetric cross‐section. Besides the NCCI recommendations, other approaches, e.g. research literature or Finite‐Element‐Analysis, may be employed to determine critical buckling loads. However, in certain cases they render different results. Present paper summarizes and compares the abovementioned analytical and numerical approaches for determining critical loads and it exemplarily analyses corresponding cantilever beam capacities using numerical approaches based on plastic zones theory (GMNIA).