NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Slow crack growth in glass in combined mode I and mode II loadingSlow crack growth in soda-lime glass under combined mode I and mode II loading was investigated in precracked disk specimens in which pure mode I, pure mode II, and various combinations of mode I and mode II were achieved by loading in diametral compression at selected angles with respect to symmetric radial cracks. It is shown that slow crack growth under these conditions can be described by a simple exponential relationship with elastic strain energy release rate as the effective crack-driving force parameter. It is possible to interpret this equation in terms of theoretical models that treat subcritical crack growth as a thermally activated bond-rupture process with an activation energy dependent on the environment, and the elastic energy release rate as the crack-driving force parameter.
Document ID
19910050203
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Shetty, D. K.
(Utah, University Salt Lake City, United States)
Rosenfield, A. R.
(Battelle Memorial Institute Columbus, OH, United States)
Date Acquired
August 15, 2013
Publication Date
May 1, 1991
Publication Information
Publication: Scripta Metallurgica et Materialia
Volume: 25
ISSN: 0956-716X
Subject Category
Nonmetallic Materials
Accession Number
91A34826
Funding Number(s)
CONTRACT_GRANT: NAG3-789
Distribution Limits
Public
Copyright
Other

Available Downloads

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