Fatigue and damage accumulation in open cell aluminium foams

H. Pinto, A. Amini, Peña, P. Moraga, M. Valenzuela

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

3 Citas (Scopus)

Resumen

Open-cell aluminium foams are a relatively new material with interesting uses in different engineering applications. This study investigates the fatigue behaviour and damage accumulation of metal foams via a fatigue analysis (Weibull E-N model), a failure criterion (the relation among the prepeak compressive and tensile slopes, the reduction in the tensile stress, or the reduction in the compressive stress), and a mathematical approach (linear, quadratic, or exponential). As a result of combining the 3 mathematical approaches and 3 failure criteria, different approaches are obtained, analysed, and validated by using experimental data. Finally, the proposed approaches can be used to directly obtain the damage accumulation level for open-cell metal foams under fully reversed cyclic loading as a function of the number of cycles applied, the total strain amplitude, and the initial damage accumulation condition.

Idioma originalInglés
Páginas (desde-hasta)483-493
Número de páginas11
PublicaciónFatigue and Fracture of Engineering Materials and Structures
Volumen41
N.º2
DOI
EstadoPublicada - 1 feb 2018
Publicado de forma externa

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