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FROM::
N. K. Gupta (Department of Applied Mechanics, Indian Institute of Technology, Delhi, India), “On non-axisymmetric collapse of thin tubes”, Mechanics of 21st Century – ICTAM04 Proceedings, 2004
SUMMARY: Occurrence of non-axisymmetric collapse modes in axial compression of thin tubes has been studied both experimentally and with the help of FE simulation. Variables considered are tube diameter to thickness ratio, annealing, variation in tube wall thickness, eccentricity, and boundary conditions. It is seen that amongst other factors, a certain combination of thickness eccentricity and unsymmetrical in plane end conditions favours formation of diamond mode.
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