Abstract
Accurate elastic solutions for perforated squares subjected to internal pressure are reported for hole diameter to plate width ratios of 0.5, 0.6, 0.7, 0.8, 0.85 and 0.9. A point-matching procedure is used to generate solutions that satisfy the internal boundary conditions exactly and the external boundary conditions approximately. The degree of approximation is examined by inspection of residual tractions along the outer boundary. Plane-stress and plane-strain conditions are considered, and the superposition by which the solutions for external pressure can be obtained from the solutions for internal pressure is indicated.
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