The Resource Interacting stress concentration factors and their effect on fatigue of metallic aerostructures, by David Warren Whitley

Interacting stress concentration factors and their effect on fatigue of metallic aerostructures, by David Warren Whitley

Label
Interacting stress concentration factors and their effect on fatigue of metallic aerostructures
Title
Interacting stress concentration factors and their effect on fatigue of metallic aerostructures
Statement of responsibility
by David Warren Whitley
Creator
Author
Subject
Language
eng
Summary
"During fabrication of certain aerostructure components, a situation can arise where a hole is mislocated so that it interferes with a radius, chem-mill step, machined step, or some other similar detail. The interaction of stress concentration effects between a hole and step are not well understood and the resulting impact on fatigue performance is difficult to predict. There exists a need for fatigue data that can be used to determine the analysis methods for evaluation of the interaction of machined steps and fastener holes. In this dissertation, the effect of stress concentrations placed in close proximity to each other and their impact on fatigue performance is studied. Unique cases of interaction between a hole and radius are analyzed. Physical testing and finite element analysis methods are used to derive the stress concentration factor (SCF, K[subscript t]) modification factors (K[subscript tf]) for open hole and joint assembly structures. The most conservative factors derived are recommended for use in fatigue analysis for these instances of holes located at or near radii. The SCF mod factors increase as distance between the hole and radius tangent decreased. For associated geometry, loading and materials similar to those presented within this research, a K[subscript tf] value of 1.22 is suggested for use in fatigue analysis of these situations of holes intersecting a radius.K[subscript t] and K[subscript tf] values have a significant effect on fatigue lifetimes and resulting fatigue margins of safety. Based on a pass/fail experiment, the corrosion specimen passed the test as no fatigue cracking failures associated with the bolt in radius condition were observed"--Abstract, page iii
Member of
Cataloging source
UMR
http://library.link/vocab/creatorName
Whitley, David Warren
Degree
Ph. D.
Dissertation year
2013
Granting institution
Missouri University of Science and Technology
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
  • dictionaries
  • bibliography
  • theses
http://library.link/vocab/subjectName
  • Airframes
  • Metals
  • Strains and stresses
  • Fracture mechanics
Label
Interacting stress concentration factors and their effect on fatigue of metallic aerostructures, by David Warren Whitley
Instantiates
Publication
Note
Vita
Bibliography note
Includes bibliographic references (pages 158-161)
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Control code
870672568
Extent
1 online resource (xi, 162 pages)
Form of item
online
Governing access note
These materials are protected under copyright by the original author
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
Other physical details
illustrations (some colored)
Specific material designation
remote
System control number
(OCoLC)870672568
Label
Interacting stress concentration factors and their effect on fatigue of metallic aerostructures, by David Warren Whitley
Publication
Note
Vita
Bibliography note
Includes bibliographic references (pages 158-161)
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Control code
870672568
Extent
1 online resource (xi, 162 pages)
Form of item
online
Governing access note
These materials are protected under copyright by the original author
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
Other physical details
illustrations (some colored)
Specific material designation
remote
System control number
(OCoLC)870672568

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