Results 211 to 220 of about 124,896 (264)

The Behavior of Salem Limestone in Cyclic Loading

Society of Petroleum Engineers Journal, 1974
Abstract Specimens of Salem limestone were loaded cyclically at a frequency of 2 cycles/sec in uniaxial cyclic compression, tension, and compression-tension. The number of cycles to failure, maximum deformation for each cycle, and load-deformation hysteresis loops were recorded.
S.S. Peng,, E.R. Podnieks,, P.J. Cain,
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Crown retention and cyclic loading (in vitro)

European Journal of Oral Sciences, 1993
Cast gold crowns were luted on extracted and prepared human teeth with zinc phosphate cement and subjected to a fatigue test by cyclic loading. The correlation between crown retention and three retention variables was determined by the fatigue test. The results show that the smallest convergence angle tested, 20°, gave better retention than did angles ...
A, Gundler, P, Lockowandt, S, Erhardson
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Pile Load Tests: Cyclic Loads and Varying Load Rates

Journal of the Geotechnical Engineering Division, 1981
Two series of axial load tests were performed on four 14-in. (356-mm) diam, open-end, steel pipe piles at an interval of about 320 days. Pile lengths of 40 ft or 50 ft (12.2 or 15.2 m) were installed below conductors driven to depths ranging from 115 ft to 320 ft (35 m to 98 m) into a strong underconsolidated clay. Each pile was subjected to as many as
Leland M. Kraft, Edward A. Verner, William R. Cox   +2 more
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The response of human premolars to cyclic loading

Journal of Oral Rehabilitation, 1997
summary The aim of the study was to obtain data on the dynamic strength of both intact and prepared premolars for partial veneer crowns. Cyclic loading was performed in a modified Amslers high‐frequency pulsator with varying force (between 400 and 1400 N). The greatest dynamic strength was exhibited by the intact samples. The greater the load the
A, Catović, K, Kraljević, V, Jerolimov, A, Celebić, F, Kovacićek, M, Valentić-Peruzović   +5 more
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Cyclic Axial Loading of Spinal Implants

Spine, 1985
The performance characteristics of Harrington distraction rods were evaluated and compared with paired wired L-rods when subjected to cyclic axial compression loading. Twelve fresh frozen swine spines with intact facet joints and anterior and posterior ligamentous complexes were instrumented and tested in a specially designed pneumatic testing device ...
R J, Nasca, J M, Hollis, J E, Lemons, T A, Cool   +3 more
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Thermal and cyclic loading of endodontic posts

European Journal of Oral Sciences, 1999
The intent of this study was to determine pullout (shear) strength of carbon and stainless steel serrated posts from teeth. The tooth-posts groups were controls, thermal-cycled, load-cycled (load applied at either a 45 degrees angle or along the long axis of the post), and thermal- and load-cycled.
J L, Drummond, T R, Toepke, T J, King
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Cyclic Shear Strength of Silts and Sands under Cyclic Loading

Earthquake Engineering and Soil Dynamics, 2005
The effect of fines content on the liquefaction of sandy soils has been investigated widely. However, currently there are contradicting suggestions and findings based on laboratory measurements and/or field observations. In this study, a series of stresscontrolled hollow cylinder cyclic torsional triaxial shear tests were conducted on saturated samples
Altun S., Göktepe A.B., Akgüner C.
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STPZ at Cyclic Loading

2016
For structures that are subjected to cyclic loading above their elastic limits, the phenomena mentioned in Chap. 2 are important for their lifetime, in particular, the elastic-plastic strain ranges and the accumulated strains resulting from a possible ratcheting mechanism.
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CRACK PROPAGATION UNDER CYCLIC LOADING

Fatigue & Fracture of Engineering Materials & Structures, 1992
Abstract— The crack propagation of a semi‐elliptical surface flaw subjected to cyclic combined axial and bending loadings with constant amplitude is numerically examined according to Paris‐Erdogan law. The critical crack, for which a given number of cycles is necessary to cause fatigue failure, can be determined from interaction between the theoretical
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Cyclic loading and fatigue in ice

Cold Regions Science and Technology, 1981
Abstract Isotropic polycrystalline ice was subjected to cyclic loading in uniaxial compression at −5°C, with stress limits 0–2 and 0–3 MPa, and frequencies in the range 0.043 to 0.5 Hz. Stress-strain records showed hysteresis loops progressing along the strain axis at non-uniform rates.
Malcolm Mellor, David Cole
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