Accession Number:

AD0777544

Title:

Multiple Connectivity and the J Integral of Fracture Mechanics.

Descriptive Note:

Technical manuscript,

Corporate Author:

ARMY CONSTRUCTION ENGINEERING RESEARCH LAB CHAMPAIGN ILL

Personal Author(s):

Report Date:

1974-04-01

Pagination or Media Count:

14.0

Abstract:

The path independence of Rices J integral has been clearly shown for an integration path lying in a simply connected region, in addition to the presumption of elasticity or deformation plasticity. Because welded metals may contain voids, such as cluster porosity and small cracks in the vicinity of a major crack tip in the weld zone, the question of path independence of the J integral in a multiply connected region is of considerable interest. The report shows that the J integral incurs a finite increment, at each increase in connectivity. with respect to the integral value at the next lower connectivity.

Subject Categories:

  • Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE