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Calculating 3-D Crack-Opening Behavior Of A Fatigue CrackMethod for calculating through-the-thickness, three-dimensional (3-D) crack-opening behavior in standard fatigue-crack-growth test specimens devised. Involves determination of crack-opening loads from crack-propagation data and finite-element analyses. In method, one considers variation in rate of crack growth along crack front, relationship between rate of crack growth and effective stress intensity factor, and variation in three-dimensional stress-intensity factor along crack front. Developed to provide simpler means for obtaining fatigue-crack-opening behavior loads.
Document ID
19950065233
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Newman, J. C., Jr. (NASA Langley Research Center, Hampton, VA.)
Dawicke, D. S. (Analytical Services and Materials, Inc.)
Shivakumar, K. N. (Analytical Services and Materials, Inc.)
Grandt, A. F., Jr. (Purdue Univ.)
Date Acquired
August 17, 2013
Publication Date
February 1, 1995
Publication Information
Publication: NASA Tech Briefs
Volume: 19
Issue: 2
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
LAR-14598
ISSN: 0145-319X
Report Number: LAR-14598
Accession Number
95B10074
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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