ISSN: 0090-3973
Page Count: 6

A Fracture Toughness Data Bank
Kaufman, JG
Director of research and development, Anaconda Aluminum, Ky.

Collis, SF
Staff engineer, Engineering Properties and Design, Alcoa Laboratories, Alcoa Technical Center, Pa.

Abstract

A data bank containing fully characterized plane-strain fracture toughness test data on aluminum products has been developed for The Metal Properties Council. Procedures were developed for computer storage, retrieval, and analysis of the data. Statistical tolerance limits were determined for two high-strength high-toughness plate products to demonstrate the system's capability. Regression analyses correlating plane-strain fracture toughness values with notch-yield ratios were performed on data for the same two products to generate critical notch-yield ratios. Such critical notch-yield ratios can be used for quality assurance purposes. The fully characterized test data provide system capability for validity criteria revision, although this was not done in the initial contract.

Keywords:
aluminum alloys, toughness, data storage, data processing

Paper ID: JTE11652J
DOI: 10.1520/JTE11652J
ASTM International is a member of CrossRef.