Simplified analytical model and numerical simulations of finite-disturbance buckling of columns

Lesław Kwaśniewski , Andrzej Ziolkowski

Abstract

Phenomenon of finite-disturbance buckling (FDB) is commonly attributed to thin elastic cylindrical and spherical shells and it has been rarely associated with columns. Ziolkowski and Imielowski's, Experimental Mechanics 51(8), (2011) 1335–1345, recent experimental study, revealing appearance of FDB in aluminum columns with slenderness remaining within specific range only, raises questions about its physical sources and mechanism. The main objective of the presented work is to provide a theoretical explanation and quantitative evaluation on the phenomenon of finite-disturbance buckling of columns undergoing elasto-plastic deformation and expressing itself in the form of critical load drop. Elucidation of the issue may have some implications to the hitherto design procedures. The paper presents a coherent analytical model of the phenomenon supported by comprehensive finite element results, compared with experimental data.
Author Lesław Kwaśniewski (FCE / IRB)
Lesław Kwaśniewski,,
- The Institute of Roads and Bridges
, Andrzej Ziolkowski
Andrzej Ziolkowski,,
-
Journal seriesInternational Journal of Non-Linear Mechanics, ISSN 0020-7462
Issue year2013
Vol51
Pages121-131
Publication size in sheets0.5
Keywords in EnglishColumn; Finite-disturbance buckling; Critical load drop; Inelastic buckling; Return point memory; Shanley's theory; Snap down
DOIDOI:10.1016/j.ijnonlinmec.2013.01.002
URL http://www.sciencedirect.com/science/article/pii/S0020746213000048
Languageen angielski
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Simplified analytical model and numerical simulations of finite-disturbance buckling of columns.pdf 1.62 MB
Score (nominal)30
ScoreMinisterial score = 30.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 30.0, 28-11-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2013 = 1.463 (2) - 2013=1.673 (5)
Citation count*4 (2015-03-30)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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