NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Some recent theoretical and experimental developments in fracture mechanicsRecent theoretical and experimental developments in four distinct areas of fracture mechanics research are described. These are as follows: experimental comparisons of different nonlinear fracture toughness measures, including the nonlinear energy, R curve, COD and J integral methods; the singular elastic crack-tip stress and displacement equations and the validity of the proposition of their general adequacy as indicated, for example, by the biaxially loaded infinite sheet with a flat crack; the thermodynamic nature of surface energy induced by propagating cracks in relation to a general continuum thermodynamic description of brittle fracture; and analytical and experimental aspects of Mode II fracture, with experimental data for certain aluminum, steel and titanium alloys.
Document ID
19780049715
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Liebowitz, H.
(George Washington Univ. Washington, DC, United States)
Eftis, J.
(George Washington Univ. Washington, DC, United States)
Hones, D. L.
(George Washington University Washington, D.C., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Subject Category
Structural Mechanics
Meeting Information
Meeting: International Conference on Fracture
Location: Ontario
Country: Canada
Start Date: June 19, 1977
End Date: June 24, 1977
Accession Number
78A33624
Funding Number(s)
OTHER: N00014-67-A-0214-0018
OTHER: NGR-09-010-053
PROJECT: NR PROJECT 064
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available