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Ingeniería Mecánica

versión On-line ISSN 1815-5944


DE-MIGUEL, Jon-Ariza; GUTYRYA, Sergiy-S.  y  JOMYAK, Yuri-M.. Structural proprieties of hollow and whole axles, with a flat crack. Ingeniería Mecánica [online]. 2014, vol.17, n.2, pp.168-175. ISSN 1815-5944.

This work studies the several advantages hollow axles show when compared to whole ones, such as lightness, better quality control, less manufacturing defects, coupling simplicity. Thence their being profusely employed in industry, in applications like railway axles, gearboxes or calenders. These advantages are altered when the axle works under bending with rotation under fatigue and a crack appears on its surface. An analytical research upon a flat surface crack model has been made of these advantages and their variations and it has been observed that hollow axles suffer more from these cracks than whole ones for certain inner diameter values, whereas for others even less than whole ones. It can be deduced that a gap for the inner diameter can be ascertained, where the axle´s rendering would be optimal.

Palabras clave : hollowand whole axles; structural properties; flat crack.

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