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1993 (EN)
Lateral post-buckling analysis of beams (EN)

Mahrenholtz, O (EN)
Ioannidis, G (EN)
Kounadis, AN (EN)

N/A (EN)

The nonlinear lateral buckling response of perfect stocky beams in the vicinity of the critical bifurcational state is discussed. Attention is focused on the initial post-buckling response. This depends on the nature of the critical branching point which is explored by using a nonlinear (lateral) bending-curvature relationship. It is found that the plane of loading (associated with the major moment of inertia) looses its stability through a stable symmetric bifurcation point. Hence, the above beams are not sensitive to imperfections, exhibiting post-buckling strength. However, the post-buckling equilibrium path is quite shallow, so that the load-carrying capacity of such beams above the critical state is rather limited. The analysis is supplemented by illustrative examples for I-beams for which the effect of various parameters on the initial postbuckling path is also discussed. © 1993 Springer-Verlag. (EN)

journalArticle

Branch Point (EN)
Lateral post buckling response (EN)
Bearing capacity (EN)
System stability (EN)
Beams and girders (EN)
Critical bifurcation state (EN)
Moment of Inertia (EN)
Buckling (EN)
Critical State (EN)
Bending (deformation) (EN)
Carrying Capacity (EN)

Εθνικό Μετσόβιο Πολυτεχνείο (EL)
National Technical University of Athens (EN)

Archive of Applied Mechanics (EN)

English

1993


Springer-Verlag (EN)



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