Zobrazeno 1 - 10
of 413
pro vyhledávání: '"KC Lieb"'
Publikováno v:
Journal of testing and evaluation, 6(2), 91-97
The design, operation, and testing of a 7 to 11-kg hand-held X-ray device for measuring residual stresses are described. The instrument is based on a miniature X-ray tube and generator and a position-sensitive detector. No motion of the detector is n
Publikováno v:
Journal of Testing and Evaluation. 7:232
A data reduction and analysis technique is presented for describing a multivariate nonstationary random process, representing a multiaxial stress distribution, by stationary techniques. An accurate simulation of this stress environment is achieved in
Publikováno v:
Journal of Testing and Evaluation. 2:435
Commercial ferritic and austenitic steels are the predominant materials used in both fossil and nuclear power plants; the significant difference in nuclear plants is the exposure to neutron fluence. Three aspects of material behavior are reviewed: (1
Publikováno v:
Journal of Testing and Evaluation. 7:245
This paper includes a summary of an extensive literature review and the experience of the author in researching the properties of surface aggregates. It confirms that to resist wear, the aggregate must be hard and tough, and to resist polishing and s
Autor:
KC Lieb, R Horstman, KA Peters, CF Enright, RL Meltzer, M Bruce Vieth, P Veerabhadra Rao, CS Martin, BC Syamala Rao, NS Lakshmana Rao
Publikováno v:
Journal of Testing and Evaluation. 9:189
A detailed study of the normalized correlations between the incubation period tc and the properties of various materials tested in a rotating disk device indicates that, at very high intensities, the strength properties influence the duration of tc.
Publikováno v:
Journal of Testing and Evaluation. 7:18
In the case of composite materials such as concrete and natural rocks, fracture is resisted by internal friction, cohesion of the matrix, and adhesion at the interfaces. Although the behavior of an interface is clearly understood only when it is acte
Publikováno v:
Journal of Testing and Evaluation. 7:185
An acoustic-ultrasonic technique was used to indicate the strength variations of tensile specimens of a graphite/epoxy composite. A “stress wave factor” was determined and its value was found to depend on variations of the fiber-resin bonding as
Publikováno v:
Journal of Testing and Evaluation. 5:457
Mode I stress intensity factors were computed for round compact specimens by the boundary collocation method. Results are presented for ratios At/R0 in the range 0.3 to 0.8, where At is the distance from the specimen center to the crack tip for a spe
Publikováno v:
Journal of Testing and Evaluation. 2:50
A study was made of the glass transition phenomena on 28 different types of asphalts by means of a simple dilatometric procedure. The study was made over a range of pressures from 1 atm pressure up to approximately 2000 atm in some instances. A study
Publikováno v:
Journal of Testing and Evaluation. 2:354
A method is presented for evaluating two-dimensional crack behavior resulting from thermal cooldown loading of rocket motor configurations in which the grain is bonded to a stiff case. The associated analytical solution used to quantitatively interpr