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AbstractAbstract
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Original Title
Effets du recuit sur le pic de Bordoni et l'anomalie de module de l'or 99,999 pour cent ecroui et irradie aux neutrons rapides
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Source
Autumn meeting on metallurgy; Paris, France; 28 Sep 1970
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Journal Article
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Conference
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Mem. Sci. Rev. Met; v. 68(9); p. 617-627
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Brochard, D.; Gantenbein, F.
CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France). Dept. d'Etudes Mecaniques et Thermiques1989
CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France). Dept. d'Etudes Mecaniques et Thermiques1989
AbstractAbstract
[en] To limit the seism effects, structures may be base isolated. A sliding system located between the structure and the support allows differential motion between them. The aim of this paper is the presentation of the method to calculate the response of the structure when the structure is represented by its eigenmodes, and the sliding phenomenon by the Coulomb friction model. Finally, an application to a simple structure shows the influence on the response of the main parameters (friction coefficient, stiffness,...)
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Source
1989; 6 p; 10. international conference on Structural Mechanics in Reactor Technology (SMIRT); Anaheim, CA (USA); 14-18 Aug 1989
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Report
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AbstractAbstract
[en] The principle of internal friction is briefly introduced. With some specific examples the possible applications of internal friction in the investigation of condensed matter physics and materials sciences are reviewed. It is pointed out that the main objectives of this research field are to develop new measurement methods and internal friction technology, discover new internal friction spectra, and establish a new internal friction model and theory. (authors)
Source
6 figs., 25 refs.
Record Type
Journal Article
Journal
Wuli; ISSN 0379-4148;
; v. 40(12); p. 786-793

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AbstractAbstract
No abstract available
Original Title
Etude des pics de frottement interieur dans le molybdene apres irradiation aux neutrons a 27 deg K
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Source
Conference on anelastic effects due to defects and phase transformations in solids; Lausanne, Switzerland; 24 Jun 1970
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Journal Article
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Conference
Journal
J. Phys. (Paris), Colloq; (no.2); p. 39-42
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AbstractAbstract
No abstract available
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Journal Article
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Scr. Met; v. 5(6); p. 519-523
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AbstractAbstract
No abstract available
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Journal Article
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Journal of Applied Physics; v. 42(11); p. 4502-4503
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AbstractAbstract
No abstract available
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Journal Article
Literature Type
Progress Report
Journal
Journal of Materials Science; V. 8(12); p. 1063-1072
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AbstractAbstract
[en] The average force of kinetic friction that occurs when layered compounds (which are commonly used as solid lubricants) are sheared in steady state is calculated for a model for such substances, assuming that the dissipation is caused by the excitation of lattice vibrations in one surface by the other. Because at slow speeds shearing is believed to be due to dislocation motion, a model for slow-speed shearing due to dislocation motion has been formulated. The force of friction is found to be inversely proportional to the sliding velocity for velocity small compared to the velocity of sound in the material and proportional to the area of the slipping surfaces. The dissipative stress at a sliding speed of 1 cm/s is calculated to be 108 dyn/cm2. The dissipative stress, calculated for slippage of two incommensurate surfaces, is found to be only 10-4 dyn/cm2, however, which opens up the question of whether lubrication is caused by slippage of the lubricant relative to the sliding surfaces rather than by shearing of the solid lubricant crystal
Secondary Subject
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Journal Article
Journal
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Iwasaki, K.
Instituto de Pesquisas Energeticas e Nucleares, Sao Paulo (Brazil)1979
Instituto de Pesquisas Energeticas e Nucleares, Sao Paulo (Brazil)1979
AbstractAbstract
[en] An inverted torsion pendulum is automatized by means of Tectanel electronic system. Internal friction and the period of vibration are measured fully automatically as a function of temperature and the data obtained are analysed with a computer. (Author)
[pt]
Um pendulo de torcao invertido do Centro de Metalurgia Nuclear do Instituto de Pesquisas Energeticas e Nucleares e automatizado por meio de um sistema eletronico de aquisicao de dados marca Tectanel. Este sistema permite a medicao do atrito interno e do periodo de vibracao em funcao da temperatura. Os dados obtidos sao analisados por um computador IBM/370/155 pertencente ao Centro de Processamento de Dados do IPEN. (Author)Source
Publicacao IPEN; no. 5; Nov 1979; 8 p
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Report
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AbstractAbstract
[en] The proceedings contain 45 papers on a wide range of subjects including flow generated instabilities in fluid flow machines, cracked shaft detection, case histories of instability phenomena in compressors, turbines, and pumps, vibration control in turbomachinery (including antiswirl techniques), and the simulation and estimation of destabilizing forces in rotating machines. The symposium was held to serve as an update on the understanding and control of rotating machinery instability problems
Primary Subject
Source
Dec 1985; 458 p; Instability in Rotating Machinery; Carson City, NV (USA); 10 Jun 1985; NASA-CP--2409; E--2652; NAS--1.55:2409; Available from NTIS, PC A21/MF A01
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Report
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