SYMPOSIA PAPER Published: 01 January 1988
STP27717S

A Closer Look at Tearing Instability and Arrest

Source

The objective of this work was to take an in-depth look at the process of ductile tearing instability and, especially, to evaluate experimentally the conditions for arrest of a ductile tearing instability. A secondary objective was to evaluate the sensitivity of a ductile tearing instability arrest to the rate at which it occurred and to the material rate sensitivity. Major conclusions are that the ductile tearing instability initiates slowly, but in a mechanical spring apparatus, it approaches drop-tower crack growth rate conditions, and hence the phenomenon is affected by the material rate sensitivity. The conditions necessary for arrest are completely stated and demonstrated by experimental data on a 3% nickel structural steel.

Author Information

Joyce, JA
United States Naval Academy, Annapolis, MD
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Details
Developed by Committee: E08
Pages: 355–370
DOI: 10.1520/STP27717S
ISBN-EB: 978-0-8031-5064-5
ISBN-13: 978-0-8031-1258-2