SEDL / STP / STP868-EB / STP34246S



Stress Distribution at the Tip of Cracks Originating from a Circular Hole under Biaxial Loads

Oladimeji, MK
Senior Engineer, Applied Physics Department, Advanced Technology Division, Ebasco Services Inc., New York, NY


Pages: 30    Published: Jan 1985


Download this paper for $25 PDF (372K)          View License Agreement
Abstract

The stress distribution at the tip of cracks originating from a circular hole under biaxial loads was examined. It was found that a numerical stress function can be developed, which when employed in the stress analysis of the neighborhood of the crack tip of this geometry, results in accurate evaluation of the crack-tip stress and displacement field. Some predictions of the fracture mechanical behavior of this geometry were then made based on these stress and displacement field representations.

The path-independent J-integral energy approach was used in examining the effect of the applied biaxial loads on this parameter. It was found that applied biaxial loads do affect the path independent J-integral taken around the crack tip. The direct relationship between the stress intensity factor and the J-integral which holds for line crack was found to be applicable to this geometry.


Keywords:
stress function, stresses, displacements, stress intensity factor, nonsingular stresses, nonsingular displacement, angle of initial crack extension, isochromatic fringes, J, -integral

Paper ID: STP34246S
Committee/Subcommittee: E08.05
DOI: 10.1520/STP34246S
CrossRef ASTM International is a member of CrossRef.