Stress Intensity Factors for Corner Cracked Holes Under General Loading Conditions

Abstract

A linear elastic analysis is conducted with the finite element-alternating method for quarter-elliptical corner cracks located at fastener holes. Mode-one stress intensity factors are presented along the crack periphery for a crack face pressure loading which can be represented by a third order polynomial. Results are also given for remote tensile loading applied perpendicular to the crack plane. Two example problems describe application of the polynomial crack face pressure solutions to other loading configurations through a simple linear superposition.