Buckling of non-uniformly heated isotropic beam: Experimental and theoretical investigations. (November 2016)

• Record Type: Journal Article
• Authors: George, Nivish; Jeyaraj, P.; Murigendrappa, S.M.
• Is Part Of: Thin-walled structures. Volume 108(2016)
• Page Start: 245
• Page End: 255
• Publication Date: 2016-11
• Subjects: Non-uniform heating -- Thermal buckling experiment -- Non-linear FEA -- Metal beam; Thin-walled structures -- Periodicals; 690.1
• DOI: 10.1016/j.tws.2016.08.019
• Languages: English
• ISSNs: 0263-8231

Abstract

Abstract: Influence of non-uniform heating on critical buckling temperature of an aluminium beam has been investigated experimentally with the help of a novel experimental set-up developed in-house. Non-linear finite element analysis, considering the initial geometric imperfection, has been carried out to compare the experimentally obtained typical load-deflection curve. The linear critical buckling temperature predicted numerically are validated with analytical solutions. Experimental results revealed that critical buckling temperature of the non-uniformly heated beam greatly differs from the uniformly heated beam. It is also observed that the location of heat source and resulting non-uniform temperature variation influences the critical buckling temperature significantly. Abstract : Graphical abstract: