Note
College of Engineering and Computer Science
Member of
Contributors
Publisher
Florida Atlantic University
Date Issued
1986
Description
A model for calcareous deposit induced fatigue crack
closure has been previously reported based upon the
criterion that the deposit thickness within the crack
equals or exceeds one-half the minimum crack opening
displacement. In the present paper an expanded and refined
model is proposed by considering (1) compaction of
calcareous deposits during the closure period of the stress
cycle and (2) the relationship between R ratio and
threshold stress intensity range. Compression tests upon
calcareous films grown on steel surfaces have been
performed, and these reveal the change in deposit thickness
as a function of stress. The implications of these models
to calcareous deposit induced fatigue crack closure are
discussed in terms of mechanical and electrochemical
parameters.
closure has been previously reported based upon the
criterion that the deposit thickness within the crack
equals or exceeds one-half the minimum crack opening
displacement. In the present paper an expanded and refined
model is proposed by considering (1) compaction of
calcareous deposits during the closure period of the stress
cycle and (2) the relationship between R ratio and
threshold stress intensity range. Compression tests upon
calcareous films grown on steel surfaces have been
performed, and these reveal the change in deposit thickness
as a function of stress. The implications of these models
to calcareous deposit induced fatigue crack closure are
discussed in terms of mechanical and electrochemical
parameters.
Language
Type
Form
Extent
72 p.
Subject (Topical)
Identifier
14315
Additional Information
College of Engineering and Computer Science
Thesis (M.S.E.)--Florida Atlantic University, 1986.
FAU Electronic Theses and Dissertations Collection
Date Backup
1986
Date Text
1986
Date Issued (EDTF)
1986
Extension
FAU
FAU
admin_unit="FAU01", ingest_id="ing1508", creator="staff:fcllz", creation_date="2007-07-19 02:25:59", modified_by="staff:fcllz", modification_date="2011-01-06 13:08:58"
IID
FADT14315
Issuance
monographic
Organizations
Attributed name: Florida Atlantic University
Attributed name: College of Engineering and Computer Science
Attributed name: Department of Ocean and Mechanical Engineering
Person Preferred Name
LEE, AI-KUO.
Graduate College
Physical Description
72 p.
application/pdf
Title Plain
INFLUENCE BY CALCAREOUS DEPOSITS ON FATIGUE CRACK CLOSURE IN STEEL
Use and Reproduction
Copyright © is held by the author, with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder.
http://rightsstatements.org/vocab/InC/1.0/
Origin Information
1986
monographic
Boca Raton, Fla.
Florida Atlantic University
Physical Location
Florida Atlantic University Libraries
Place
Boca Raton, Fla.
Sub Location
Digital Library
Title
INFLUENCE BY CALCAREOUS DEPOSITS ON FATIGUE CRACK CLOSURE IN STEEL
Other Title Info
INFLUENCE BY CALCAREOUS DEPOSITS ON FATIGUE CRACK CLOSURE IN STEEL