Some Fracture Mechanics Relationships for Thin Sheet Materials.
Abstract
The fracture resistance parameter Kc has been determined for a number of aluminum, titanium, and steel alloy sheet materials over a thickness range of 0.032 to 0.25 in. (0.8 to 6.25 mm). The Kc parameter is found to depend inversely upon the material yield stress. Further, a relationship can be established between Kc and fracture appearance. Analysis of the data has also disclosed that the amount of crack extension, i.e., final crack length appears to be influenced by the initial crack length. A straight-line curve in logarithmic coordinates relates the ratio of initial to final crack length. The development of these relationships can be of real assistance in the design of a standard initial screening test for Kc. (Modified author abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 21, 1973
- Accession Number
- AD0774487
Entities
People
- A. M. Sullivan
- J. Stoop
Organizations
- United States Naval Research Laboratory