Results 51 to 60 of about 430,508 (214)
Post crack flexural toughness in steel fabric and fibre reinforced concrete beams [PDF]
, 2008 The purpose of the paper is to provide independent research and evaluate manufacturers’ claims that structural polypropylene fibres provide satisfactory crack control reinforcement and compare the test results from macro synthetic polypropylene fibres ...
Richardson, Alan
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Cold-Formed Steel Sections with Web Openings Subjected to Web Crippling under Two-Flange Loading Conditions — Part I : Tests and Finite Element Analysis [PDF]
, 2012 The results of 82 web crippling tests are presented, with 20 tests conducted on channel sections without web openings and 62 tests conducted on channel sections with web openings.
Lim, James +4 more
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Rolling-element fatigue life of silicon nitride balls [PDF]
The five-ball fatigue tester was used to evaluate silicon nitride as a rolling-element bearing material. Results indicate that hot-pressed silicon nitride running against steel may be expected to yield fatigue lives comparable to or greater than those of
Parker, R. J., Zaretsky, E. V.
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A method for the measurement of hydrodynamic oil films using ultrasonic reflection [PDF]
, 2004 The measurement of the thickness of an oil film in a lubricated component is essential information for performance monitoring and control. In this work, a new method for oil film thickness measurement, based on the reflection of ultrasound, is evaluated ...
Drinkwater, B.W. +2 more
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Integral bridge abutment with composite dowels: structural scheme and failure patterns
Fracture and Structural IntegrityThis paper presents a novel integral abutment design incorporating a composite dowel girder and H-shaped steel pile abutments to enhance load-bearing capacity and construction efficiency.
Zhihua Xiong +4 more
doaj +5 more sources
Endurance and failure characteristics of main-shaft jet engine bearings at 3x10 to the 6th power DN [PDF]
Groups of thirty 120-mm bore angular contact ball bearings were endurance tested at a speed of 12,000 and 25,000 rpm and a thrust load of 66 721 N. The bearings were manufactured from a single heat of VIM-VAR AISI M-50 steel.
Bamberger, E. N. +2 more
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BuildingsIn this paper, 17 types of circular, hollow steel tube columns were designed for the axial compression test. A defect was corroded with an acid rain spray method.
Wei Fang +6 more
doaj +1 more source
Journal of Marine Science and Engineering, 2020 In the process of repairing a damaged jacket with a grouting clamp, it is necessary to analyze the bearing capacity of the damaged structure to determine whether it meets requirements for maintenance and reinforcement.
Bo Zhang +3 more
doaj +1 more source
Bearing and gear steels for aerospace applications [PDF]
Research in metallurgy and processing for bearing and gear steels has resulted in improvements in rolling-element bearing and gear life for aerospace application by a factor of approximately 200 over that obtained in the early 1940's.
Zaretsky, Erwin V.
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Titanium carbide coatings for aerospace ball bearings [PDF]
In conventional ball bearings, steel to steel contacts between the balls and the raceways are at the origin of microwelds which lead to material transfer, surface roughening, lubricant breakdown, and finally to a loss in the bearing performances.
Boving, Hans J. +2 more
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