Stress intensity factors for cracks at loaded holes-effect of load distribution

Autor: Rooke, D P, Hutchins, S M
Zdroj: Journal of Strain Analysis for Engineering Design; April 1984, Vol. 19 Issue: 2 p81-96, 16p
Abstrakt: Stress intensity factors are evaluated for a radial crack at the edge of a circular hole subjected to a localized radial or tangential force on its perimeter. These factors can be used as Green's functions to determine the stress intensity factor when an arbitrary load distribution acts on the hole perimeter. Both the accuracy and ease-of-use of this Green's function technique are demonstrated by comparing some test cases with known results. The strong dependence of the stress intensity factor for short cracks upon the detailed load distribution on the perimeter of the hole is discussed, and the importance of fricitional forces is demonstrated in the determination of fatigue lifetimes in the presence of fretting
Databáze: Supplemental Index