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Linearized analysis of creep buckling problem is presented to evaluate critical loads in many different cases, including some nonlinear materials; concept of reduced modulus is emphasized, showing that its value is independent of geometrical and structural characteristics of bar; technical approach is proposed that takes into account initial imperfection of bar, beam-column effect, and elastoplastic characteristics of material; it is shown that load evaluated with reduced modulus is upper limit of actual critical load.
Linearized analysis of creep buckling problem is presented to evaluate critical loads in many different cases, including some nonlinear materials; concept of reduced modulus is emphasized, showing that its value is independent of geometrical and structural characteristics of bar; technical approach is proposed that takes into account initial imperfection of bar, beam-column effect, and elastoplastic characteristics of material; it is shown that load evaluated with reduced modulus is upper limit of actual critical load.
Creep buckling of slender columns
ASCE -- Proc (J Structural Div)
Distefano, J.N. (author)
1965
24 pages
Article (Journal)
English
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