ABSTRACT
Adany et al. 2007) attention has been paid to the global axial mode, which is considered only in the theoretical aspect in linear issues, that is to say, in critical loads. Adany & Schafer (2006a), (2006b) have said that “it should be noted that this axial mode is a theoretically possible buckling mode, even though it has little practical importance”. In the axial extension mode, longitudinal displacements of the cross-section dominate and this mode can be referred to as the shortening one. The axial mode is symmetric with respect to the cross-section axis of symmetry and it is symmetric with respect to the axis of overall bending.
