Stiffness of Thin Shells: Brief Notes on the Optimum Stiffness Obtainable for a Given Weight of Material Available to Purchase

IN these notes, the stillness of thin shells is discussed from three different viewpoints. Throughout, the basis of the argument is the elementary Batho‐Bredt torsion formula and no attempt is made to discuss the effects of end or other constraints on the straight‐forward conclusions obtained on this simple basis.