L. Mendia-Huarte  J. Gascón-Álvarez  G. Atxaga-Genbeltzu      

Anales de la Mecánica de la Fractura, nº 33 . 2016 . Pág. 40 -44
Ver (.pdf): Anales33-005

Resumen: The present study relating to a gear tooth fracture reveals the operation of a fatigue mechanism nucleated at an alumina inclusions pool. Although the material inclusions content satisfies the specific standards, the size of the inclusions pool, detected at the fracture origin, is significantly higher than the maximum allowed and is therefore considered a failure cause. Gear working conditions, as determined by means of fatigue striation spacing and estimates of the crack growth rate (dadN), reveal that the working stresses are well above the specified nominal stress and, therefore, can have assisted the failure process.

Localización: San Sebastián

TECNALIA, Parque Científico y Tecnológico de Gipuzkoa Mikeletegi Pasealekua, 2,E-20009 Donostia-San Sebastián (Spain)
TECNALIA, Parque Científico y Tecnológico de Gipuzkoa Mikeletegi Pasealekua, 2,E-20009 Donostia-San Sebastián (Spain)
TECNALIA, Parque Científico y Tecnológico de Gipuzkoa Mikeletegi Pasealekua, 2,E-20009 Donostia-San Sebastián (Spain)