Elastic Crack Analysis by a Finite Element Hybrid Method

Download this report (PDF, 0.97 MB, 23 pages)
Report Number: AFFDL TR 71-160 p. 661-682
Author(s): Pian, T. H. H., Tong, P., Luk, C. H.
Corporate Author(s): Massachusetts Institute of Technology
Date of Publication: 1973-12
Pages: 23
DoD Task:
Identifier: This paper is part of a conference proceedings. See AD0785968

The paper presents an efficient finite element method for evaluating the elastic stress intensity factors at the tip of a sharp crack. The method is based on a hybrid stress model for which special stress terms which represent the correct singularity behavior at the crack tip can be included. The magnitudes of such singular terms which are among the unknowns of the final matrix equations are, in fact, the stress intensity factors to be evaluated. Example solutions include plane stress cracks of both the opening type (Mode I) and in-plane shear type (Mode II) for isotropic materials and· of the opening type for anisotropic materials.

Provenance: Bombardier/Aero

Other options for obtaining this report:

Via the Defense Technical Information Center (DTIC):
Identifier: This paper is part of a conference proceedings. Access a record for the conference proceedings, and possibly a pdf download of the report, at DTIC

Via National Technical Report Library:
This report may be available for download from NTRL. Use the Title from this record to locate the item in DTIC Online

Indications of Public Availability
No digital image of an index entry indicating public availability is currently available
There has been no verification of an indication of public availability from an inside cover statement

Related report(s)