The fatigue life gage

dc.contributor.advisorWhite, Ardis H.
dc.contributor.committeeMemberGraff, William J.
dc.contributor.committeeMemberEichberger, Le Roy C.
dc.creatorPatel, Narsing Maganlal
dc.description.abstractThis thesis describes the present state of development of the fatigue life gage which generates an irreversible resistance change which is a continuous function of the fatigue experience of the structure to which it is attached. Values of 7.52 per cent resistance change for 2024 T4 aluminum and 5.07 per cent resistance change for CRS 1018 at crack initiation are obtained using NA-01 fatigue gages. Results of the tests are quite consistent. The instant at which the first fatigue crack occurs is a vital point in the life of a structure, and sometimes the useful life ends very shortly thereafter. The fatigue gage, which permits prediction and prevention of that initial crack, thus becomes an extremely important device. In time, it may become a more important device than the electric resistance strain gage. As is true with any precision measuring device, the successful use of the fatigue gage depends upon intelligent application, meticulous care in installation, and in measurement of gage output and proper interpretation of response.
dc.description.departmentCivil and Environmental Engineering, Department of
dc.format.digitalOriginreformatted digital
dc.rightsThis item is protected by copyright but is made available here under a claim of fair use (17 U.S.C. Section 107) for non-profit research and educational purposes. Users of this work assume the responsibility for determining copyright status prior to reusing, publishing, or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions requires express permission of the copyright holder.
dc.titleThe fatigue life gage
dc.type.genreThesis College of Engineering Engineering, Department of Engineering of Houston of Science


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