On closed form solution for the elastic stress field around holes in orthotropic composite plates under in-plane stress conditions

The present paper presents analytical work performed care of the Aerospace Department of the University of Rome ‘La Sapienza’. Using the classical Airy's function solution method the expression of the stress-strain field, in a composite material, has been determined for different simple hole geometries in a closed form. The results have been compared with several extensive finite element calculations that confirm the accuracy of the theoretical solutions found.