Some Aspects of Mode Interaction in Thin-Walled Stiffened Plate Under Uniform Compression
Interaction of nearly simultaneous buckling modes in the presence of imperfections is studied. The investigation is concerned with infinitely wide plate with thin-walled stiffeners under uniform compression. The asymptotic expansion established by BYSKOV and HUTCHINSON [1] is also used here. The present paper is devoted to the improved study of equilibrium path in the initial postbuckling behaviour of imperfect structures. The results include effects of interaction of the „primary" local mode and a „secondary" local mode having the same wavelength as the primary one. In this paper the analysis of a few buckling modes interaction is presented.
References
E. BYSKOV, J. W. HUTCHINSON, Mode interaction in axially stiffened cylindrical shells, AIAA J., 15, 7, 1977.
W. T. KOITER, A. VAN DER NEUT, Interaction between local and overall buckling of stiffened compression panels, Part I, II, Thin-walled Structures J. (ed. by J. RHODES and A. C. WALKER) Granada, London 1980.
S. SRIDHARAN, M. A. ALI, An improved interactive buckling analysis of thin-walled column having doubly symmetric sections, Int. J. Solids Struct., 22, 4, 1986.
W. T. KOITER, General theory of mode interaction in stiffened plate, and shell structures, WTHD, Report 590, Delft 1976.
R. BENITO, S. SRIDHARAN, Mode interaction in thin-walled structural members, J. Struct. Mech., 12, 4, 1984-1985.
S. SRIDHARAN, Doubly symmetric interactive buckling of plate structures, Int. J. Solids Struct., 19, 7, 1983.
А. И. МАНЕВИЧ, К меории связанной помери устойчивосми подкрепленных монкосменных консмрукций, Прикл. Математика и Механика, 46, 2, 1982.
А. И. МАНЕВИЧ, Взаимодейсмвие форм помери усмочивосми сжамой подкреплениой панели, Строит. мех. и расчет сооружений, 5, 1981.
А. П. Колодяжный, К определению несущей способносми подкрепленных пласмин при сжамии, Гидроаэромеханика и теория упругости, 33, 1984.
Z. KOŁAKOWSKI, Mode interaction in wide plate closed section longitudinal stiffeners under compression, Enging, Trans., 35, 4, 1987.