Effect of Section Size on the Fatigue Crack Growth Rate of A516-60 Pressure-Vessel Steel.
Abstract
Studies of the fatigue crack growth rate of A516-60 pressure-vessel steel indicate no section-size effect in stress-relieved specimens ranging in thickness from 6.35-50.8 mm (0.25 to 2.0 in.). A regression curve equation for all thicknesses, relating cyclic crack growth rate (da/dN) to crack-tip stress-intensity factor range (delta K) is obtained. The significance of these results is discussed in the light of current engineering practice and of previous studies of size effects in fatigue crack propagation. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 04, 1976
- Accession Number
- ADA029427
Entities
People
- A. M. Sullivan
- Thomas W. Crooker
Organizations
- United States Naval Research Laboratory