I am a M. Tech Scholar working on project "Analysis of Framed tube structure with multiple internal tubes'. I am going to analyse structure statically as well as Dynamically. In dynamic analysis I have set objective to determine the effect of number of tubes on shear lag. Is there any effect of number of tubes on shear lag ?
Mahmud M.S. Dwaikat
i would guess the effect of shear lag will reduce when using more and more tubes. Because more tubes will make the structure more and more uniform in terms of stiffness, and this makes the distribution of forces follow a more linearly fashion (more consistent with Bernoulli assumption of linear strain) per tube, hence reducing shear lag effect.
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