Journal Published Online: 01 July 1994
Volume 22, Issue 4

A Fractographic Technique for the Estimation of Initiation Fracture Toughness for Ductile Materials

CODEN: JTEVAB

Abstract

A single specimen fractographic technique based on critical stretch zone width measurements is suggested for the estimation of fracture toughness (JIc) for highly ductile materials. The salient feature of this technique is that it overcomes the problem of fatigue precracking and is able to predict the fracture toughness of a material using a blunt notch specimen. Fracture toughness tests on commercially pure Armco iron, nickel, and aluminum as well as Al-Mn based austenitic stainless steel and En28 steel were carried out to validate the method.

Author Information

Srinivas, M
Defence Metallurgical Research Laboratory, Kanchanbagh, Hyderabad, India
Kamat, SV
Defence Metallurgical Research Laboratory, Kanchanbagh, Hyderabad, India
Rao, PR
Jawaharial Nehru Centre for Advanced Scientific Research, Bangalore, India
Pages: 7
Price: $25.00
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Details
Stock #: JTE11838J
ISSN: 0090-3973
DOI: 10.1520/JTE11838J