ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 6

Comparison of Chevron-Notched Specimen Types for Fracture Toughness Testing of Aluminum

Morrison, J
Defence Scientist, Defence Research Establishment Pacific, Forces Mail Office, Victoria, British Columbia

Gough, JP
Consulting Engineer, Baker Materials Engineering, Vancouver, British Columbia

KarisAllen, KJ
Defence Scientist, Defence Research Establishment Pacific, Forces Mail Office, Victoria, British Columbia

(Received 9 February 1988; accepted 22 July 1988)

Abstract

There is increasing interest in the use of chevron-notched specimens for the measurement of plane-strain fracture toughness. Attention has been focussed on the short rod/bar specimens, for which several different geometries have been proposed. This paper describes a series of tests on 6061-T651 aluminum alloy aimed at providing a comparison of five short rod/bar specimen types with three different thicknesses. Also included are data from standard compact-tension specimens.

Keywords:
fracture toughness, fracture mechanics, test methods, chevron-notched specimens, aluminum

Paper ID: JTE11528J
DOI: 10.1520/JTE11528J
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