Căutare 2006 fascicula8 după Titlu
Afișează articolele 21-24 of 24
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Ultrasound Action on Strength Properties of Polycrystalline Metals
(Universitatea ”Dunărea de Jos” din Galați, 2006)The mechanical properties of pure aluminum were investigated by tensile test on the sample with average grain size between 60 and 1000 µ m. The stress strain functions given by the models are fitted to the measured points. ... -
Upon Friction on a Ball Bearing - Outer Raceway Contact - I. Uniform Loading of the Balls
(Universitatea ”Dunărea de Jos” din Galați, 2006)The paper advances an analytical model to evaluate the effect of micro-slip on the friction losses at the interface of a normally loaded rolling contact. The model validation was done by comparing the theoretical results ... -
Upon Radial Fretting of Dissimilar Materials
(Universitatea ”Dunărea de Jos” din Galați, 2006)The paper presents a state of the art concerning radial fretting for dissimilar bodies and fretting damage. Four simple fretting models are defined in the literature: tangential, radial, rotational and torsional. Only the ... -
Wear and Irreversible Entropy Generation in Dry Sliding
(Universitatea "Dunărea de Jos" din Galaţi, 2006)This paper examines the relationship between wear and the generation of entropy within the mechanically affected zone, MAZ, of a sliding material. It is postulated that wear is related to irreversible entropy generation ...