Zobrazeno 1 - 10
of 242
pro vyhledávání: '"YR Fiorini"'
Publikováno v:
Journal of Testing and Evaluation. 4:209
Instrumented impact testing has been used to measure the dynamic fracture-initiation toughness of some precipitation hardened aluminum alloys. The results of these tests have been calculated by the energy method GIc = ω/ηA and by the K calibration
Publikováno v:
Journal of Testing and Evaluation. 5:2
Publikováno v:
Journal of Testing and Evaluation. 4:141
This work describes the results of a laboratory testing program undertaken to evaluate the merits of work-hardened, threaded machine elements when subjected to axial fatigue in the presence of a corrosive environment. The experimental apparatus is de
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. 4:327
A new approach is developed for predicting strain-controlled, low cycle fatigue life at elevated temperature using a proposed energy measure of fatigue damage. This measure of damage, defined as the net tensile hysteretic energy of the fatigue cycle,
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
Autor:
RL Meltzer, YR Fiorini, RT Horstman, IC Moore, AL Batik, GL Hoffman, G Cumberledge, WC Koehler
Publikováno v:
Journal of Testing and Evaluation. 4:167
With the extensive use of aggregate material in highway construction (primarily subbase) in Pennsylvania, the Pennsylvania Department of Transportation (PennDOT) initiated an indepth analysis of results of laboratory and field compaction tests on agg
Publikováno v:
Journal of Testing and Evaluation. 5:141
An experimental study of the mechanical properties of Florida-oolite concrete and oolite aggregates is presented. The properties of Florida-oolite concrete determined were strength, modulus of elasticity, creep, and shrinkage. The properties determin
Publikováno v:
Journal of Testing and Evaluation. 5:320
Structural glass fabric/epoxy laminates were exposed to various periods of immersion in water at room and elevated temperatures and tested after oven drying. Changes in weight, dimensions, and mechanical characteristics with exposure indicated that i
Publikováno v:
Journal of Testing and Evaluation. 5:292
A mathematical model based on a Fourier series expansion has been used to represent the roughness of planar sections of particles, that is, the combined effect of shape and surface texture. A new coefficient T is introduced which more precisely expre