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This book€offers a broad view of the research, as well as an inventory of historical and current research, and will provide students with€a clearer understanding of the subject by exploring the mechanisms of fatigue between different groups.
This title offers a broad view of the research, as well as an inventory of historical and current research, and will provide students with a clearer understanding of the subject by exploring the mechanisms of fatigue between different groups.
In this dissertation, conjugate stress (CS) sensing is advanced through a parametric evaluation of a surface-mounted design and through experimental validation in monotonic and cyclic tensile tests. The CS sensing concept uses a pair of sensors of significantly different mechani…
A combination of experiments and modeling are used to address the vibration durability of structures subjected to different random vibration environments. Presented in this work are a set of experimental data comparing the rate of change of the first natural frequency and the me…
This work focuses on experimental study of cross-property connections that link up effective linear elastic and electrical conductive properties of heterogeneous materials. Such connections are especially useful when one property (electrical conductivity) is easier to measure th…
Eco-Core is a fire resistant material for sandwich structural application; it was developed at NC A&T State University. The Eco-Core is made of very small amount of phenolic resin and large volume of flyash by a syntactic process. The process development, static mechanical and f…
There is a need in the railway industry for a flexible solution to the problem of service interruptions due to impacts on railway bridges from highway and other vehicle traffic. One such solution is the placement of a temporary span that can be used on multiple substructure type…
This study develops new quantitative thermoelastic stress analysis (TSA) techniques for fracture and fatigue damage analysis of composite materials. The first part deals with the thermo-mechanical derivation of two quantitative TSA techniques applied to orthotropic composites wi…
Alloy 800HT is a heat resistance material that is used in high temperature industrial applications such as steam/hydrocarbon reforming and ethylene plant tubes. Long time exposure under these service conditions cause the alloy to undergo microstructural changes. The alloy, in fa…
Load associated fatigue cracking is one of the major distress types occurring in flexible pavement systems. Asphalt Concrete (AC) mixtures flexural beam fatigue testing in the laboratory has been used for several decades and is expected to be an integral part of the new Superpav…
The drinking water infrastructure in the North America requires a durable and reliable water transmission pipe material. Thus, it is important to study pipe performance, so that water utilities can benefit from cost-effective and efficient pipe installations and longer design li…
For many high end microelectronics products, the long-term service life may be limited by thermal mismatch induced fatigue, a factor generally assessed by accelerated thermal cycling and extrapolation of the test results to service conditions. The sensitivities of common Lead- f…
Asphalt cement is viscoelastic material, which is time and temperature dependent. At high temperatures asphalt cement behaves as a viscous material. At below freezing temperatures it acts as a brittle solid and is more susceptible to temperature cracking. In order to improve bot…
The understanding of the cyclic deformation processes and their interaction with the kinetics of stage-I crack growth under stress control is rudimentary in copper single crystals. This understanding is necessary to conceive a method for summing damage under variable amplitude l…
This randomized, placebo-controlled trial investigated the use of biofield healing (termed energy healing), compared to mock healing, for the alleviation of fatigue and inflammation after adjuvant or neoadjuvant therapy for breast cancer. Thirty-three women breast cancer survivo…
Offers practical solutions to managing fitness and health, improving alertness and sleep quality, and maintaining a social life while performing shiftwork. Includes electronic forms, visual aids, and checklists to assist the trainer in communicating safety.
