Abstract
The aim of the present investigation is to study the ‘blending band’ in-between two non-conforming cylindrical surfaces imposed on a planar thin elastic metal sheet. Initially, an experimental investigation was made over all the sheet, in order to make a survey of the bending and membrane stress and strain fields, principal curvatures, bending and membrane strain energy densities. Secondly, a rational explanation was sought for the most important experimental results collected. In view of the obvious analytical difficulties involved in such an attempt, a simple geometrical approach was adopted. Under the limitations of a preliminary study, the expressions for some geometrical parameters and for the bending and membrane energies thus obtained, lead to results compatible with the experimental data.
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