SYMPOSIA PAPER Published: 01 January 1988
STP23253S

Modifications of ASTM E 813-81 Standard Test Method for an Improved Definition of Using New Blunting-Line Equation

Source

A test procedure for determining the fracture resistance of ductile metallic materials under stable crack growth conditions is described. The procedure consists of the determination of a Ja curve with particular emphasis on the near-initiation region. In our proposal, JIc is defined as the fracture resistance at 0.2-mm stable ductile tearing. It is determined by the intersection of the Ja curve with an intercept line which is parallel to and 0.2 mm off the blunting line. The blunting-line formula is improved by accounting for the strain hardening behavior of the material. A simple determination of the blunting-line equation is shown, and its applicability is checked using a broad range of materials.

Author Information

Heerens, J
GKSS Research Center Geesthacht, Geesthacht, West Germany
Schwalbe, K-H
GKSS Research Center Geesthacht, Geesthacht, West Germany
Cornec, A
GKSS Research Center Geesthacht, Geesthacht, West Germany
Price: $25.00
Contact Sales
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Developed by Committee: E08
Pages: 374–389
DOI: 10.1520/STP23253S
ISBN-EB: 978-0-8031-5036-2
ISBN-13: 978-0-8031-0949-0