Equations are derived for the stresses, strains, and radial dis-placement in circular spiralloy disks and wafers which are subjected to radial forces along its internal and external boundaries. The wafers have constant directional material properties, while the disks have variable moduli of elasticity, but a constant Poisson's ratio. Disk solutions are found when the moduli of elasticity in the circumferential and in the radial directions vary with the radius raised to the same power.nIt is found that the maximum circumferential stress in a spiralloy wafer can be at either boundary, depending upon the ratio of external to internal radii and the ratio of its directional moduli of elasticity. At times the stress distribution bears little resemblance to the corresponding stress distribution of classical elasticity. It is also found that the maximum stress may be significantly altered by fabricating the spiralloy disks with variable moduli of elasticity.
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