SYMPOSIA PAPER Published: 01 January 1990

Assessment of Influence Function for Elliptical Cracks Subjected to Uniform Tension and to Pure Bending


A root mean square (RMS) type stress intensity factor, K, which is defined and used in [1] and [2] for crack growth and fracture calculations, is investigated in this study. Whereas the common K studies use approximate numerical integration of the influence function to analyze various configurations, in the present study the K definition is used analytically to derive accurate K values for various ellipticaljiracks subjected to uniform tensile stress and also to pure bending. The significance of these K results are explored via comparison with the exact classical maximum and minimum stress intensity factors along the front of the corresponding elliptical cracks.

Author Information

Oore, M
Aeronautical Support Engineering, Halifax, Nova Scotia, Canada
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Developed by Committee: E08
Pages: 490–508
DOI: 10.1520/STP19010S
ISBN-EB: 978-0-8031-5134-5
ISBN-13: 978-0-8031-1299-5