SYMPOSIA PAPER Published: 01 January 1974

An Estimation Model for the Application of the J-Integral


A technique is developed for estimating the J-integral for the case of a crack imbedded in a uniform strain field. Use of this technique provides a possible simple engineering method for applying the J-integral fracture criterion to small cracks imbedded in a plastic zone. Reliability of structural components could be evaluated without the need for sophisticated elastic-plastic stress analysis.

The application of this model to the case of a small crack emanating from a stress concentration illustrates how an attempt to extend linear elastic fracture concepts may lead to erroneous results.

Author Information

Begley, JA
Westinghouse Research Laboratories, Pittsburgh, Pa.
Landes, JD
Westinghouse Research Laboratories, Pittsburgh, Pa.
Wilson, WK
Westinghouse Research Laboratories, Pittsburgh, Pa.
Price: $25.00
Contact Sales
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Developed by Committee: E08
Pages: 155–169
DOI: 10.1520/STP33139S
ISBN-EB: 978-0-8031-4645-7
ISBN-13: 978-0-8031-0361-0