Influence of initial imperfections on the collapse behaviour of box-columns
Ładowanie...
Data
1997
Autorzy
Tytuł czasopisma
ISSN czasopisma
Tytuł tomu
Wydawca
Wydawnictwo Politechniki Łódzkiej
Lodz University of Technology Press
Lodz University of Technology Press
Abstrakt
In this work the analysis of the post-buckling state in the elasto-plastic range of a box-colunm
subjected to uniform compression in the elasto-plastic range is preseoted.
The problem is investigated using Rayleigh-Ritz variational method. The stress-strains
relations in the plastic range are determined on the basis of the flow theory of plasticity.
The proposed method is a combination of analytical and numerical solutions.
Different materiał stress-strain curves and initial imperfections such: out-of-flatness and
residual stresses are taken into account. The load-shortening curves for column of
different geometrical parameters and material properties are shown in diagrams.
Opis
Słowa kluczowe
box column, the flow theory of plasticity, buckling, analysis of the post-buckling state, przepływowa teoria plastyczności, kolumna pudełkowa, wyboczenie, analiza stanu po wyboczeniu
Cytowanie
Grądzki R., Influence of initial imperfections on the collapse behaviour of box-columns. W: VIII Sympozjum Stateczności Konstrukcji : referaty, Zakopane, 22-26 IX 1997, Królak M. (red.), Wydawca Politechnika Łódzka, Łódź 1997, s. 79-82.