Resistance of Members to Flexural Buckling According to Eurocode 3: - Focus on Imperfections
Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
This work focuses mainly on the resistance of members to flexural buckling
according to Eurocode 3. The work provides the mathematical backgrounds to the
equations and buckling curves presented in Eurocode 3. The work also, attempts to
reveal how different imperfections influence the flexural buckling resistance which is
demonstrated through Finite Element (FE) simulations.
The work presents modeling and analysis on a steel column in ABAQUS 6.14.
Linear and non-linear buckling analyses of the steel column, with the influence of
imperfections, are implemented in this work. Specifically, the imperfections
considered in this study are material plasticity, initial bow and residual stress.
The influence of initial bow imperfection of 0.1% of the length of the column
considering flexural buckling was found to be 45.28% of the Euler buckling load.
The influence of residual stresses, with a magnitude of maximum about 13% in the
flange and 35% in the web, of the yielding strength, on flexural buckling is about
31.9% of the design Euler buckling load. The combined effect of residual stress and
initial bow imperfection on flexural buckling is about 45.34% of the design Euler
Place, publisher, year, edition, pages
2015. , 51 p.
buckling curves, buckling resistance, Eigen-value, Eurocode 3, flexural
IdentifiersURN: urn:nbn:se:lnu:diva-46636OAI: oai:DiVA.org:lnu-46636DiVA: diva2:859155
Subject / course
Mechanical Engineering, Master Programme, 60 credits
Hu, Min, DoktorandRydström, Sara, Extern
Linderholt, Andreas, Lektor