Rapid Inexpensive Tests for Determining Fracture Toughness.
Abstract
All available, demonstrated correlations between the results of existing fracture test methods and valid plane-strain fracture toughness (KIc) measurements (made according to ASTM Standard Method of Test E399) have been assessed. The fracture toughness test methods considered include: standard and fatigue-precracked Charpy-size specimen tests; dynamic tear tests; unnotched, notched, and plane-strain tension tests; and bulge tests. The materials for which the correlations have been examined include aluminum and titanium alloys and steels of interest in aerospace, naval construction, army materiel, and nuclear pressure vessel applications. In evaluating the various rapid, inexpensive test methods that have been proposed to measure fracture toughness, the Committee considered both the degree of correlation that could be demonstrated for a given test method and the complexity of the measurements to be made and their analysis, the probable capability of quality-control personnel to make and analyze such measurements, and the relative cost of preparing specimens and carrying out the tests. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1976
- Accession Number
- ADA047934