Effect of Sheet Thickness on the Fracture Resistance K sub c Parameter for Titanium Alloys.
Abstract
The influence of sheet thickness on the plane stress fracture resistance parameter K sub c has been investigated for four high-strength titanium alloys. The center-cracked-tension (CCT) specimen was employed over a thickness range from 1/32 to 1/8 in. The effect of thickness on K sub c varied with each alloy. The more frangible alloys evidenced peak K sub c values in thinner specimens than those alloys manifesting higher fracture resistance. Slit tips with 1-mil radii indicated lower K sub c values than tips of 3 to 5 mils. No influence of initial crack length was noted over the range studied. The data were applied to a model which postulates the K sub c dependency on thickness. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 08, 1972
- Accession Number
- AD0753198
Entities
People
- A. M. Sullivan
- C. N. Freed
- J. Stoop
Organizations
- United States Naval Research Laboratory