Results 211 to 220 of about 70,301 (265)
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The response of human premolars to cyclic loading
Journal of Oral Rehabilitation, 1997summary 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 +5 more
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Cyclic Axial Loading of Spinal Implants
Spine, 1985The 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 +3 more
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Thermal and cyclic loading of endodontic posts
European Journal of Oral Sciences, 1999The 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, 2005The 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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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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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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Cyclic loading and fatigue in ice
Cold Regions Science and Technology, 1981Abstract 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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1948
In recent years there has been a concerted effort by highway and airport engineers to develop methods of evaluating the supporting power of subgrades, base courses, and finished pavement designs by means of loading or bearing tests. From the investigations and testing programs of the various engineering organizations in charge of pavement design and ...
Jean E. Hittle, W. H. Goetz
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In recent years there has been a concerted effort by highway and airport engineers to develop methods of evaluating the supporting power of subgrades, base courses, and finished pavement designs by means of loading or bearing tests. From the investigations and testing programs of the various engineering organizations in charge of pavement design and ...
Jean E. Hittle, W. H. Goetz
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An Electropneumatic Cyclic Loading System
Geotechnical Testing Journal, 1981Abstract This paper reviews some of the current systems in use for the application of cyclic loads to soil specimens. Their main features and principles of operation are described. A relatively low-cost electropneumatic system recently developed at the University of California at Berkeley is described in detail.
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Optimal Design for Cyclic Loading
1975Analysis of the response of elastoplastic structures to a cyclic loading is of a considerable practical importance because the most of real loads are cyclic. Recently the branch of mechanics related to this field and commonly known as a shakedown theory has achieved a significant progress [1, 2, 3, 4, 5]. However, the main attention was given as yet to
A. Borkauskas, J. Atkočiūnas
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Resistance of Sand to Cyclic Loading
1996Abstract Prior to shaking by an earthquake, an element of saturated soil under level ground has undergone a long-term consolidation process under Ko conditions. This soil element is subjected undrained to a sequence of shear stress cycles during an earthquake as illustrated in Fig. 10.l(a).
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