Journal
THIN-WALLED STRUCTURES
Volume 108, Issue -, Pages 245-255Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.tws.2016.08.019
Keywords
Non-uniform heating; Thermal buckling experiment; Non-linear FEA; Metal beam
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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. (C) 2016 Elsevier Ltd. All rights reserved.
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