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Date : 2016-06-23 12:24:21

The group of graduated-length leaves, along with the master leaf can be treated as a triangular plate In this case, it is assumed that the individual leaves are separated and the master leaf placed at the centre.  The second leaf is cut longitudinally into two halves, each of width (b/2) and placed on each side of the master leaf. 

A similar procedure is repeated for other leaves The resultant shape is approximately a triangular plate of thickness t and a  maximum width at the support as (ngb).   The bending stress in the plate, which is uniform throughout, is given by

 

 

 

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