NOTCH BEHAVIOR AND FATIGUE LIFE PREDICTIONS OF DISCONTINUOUSLY REINFORCED MMCs

Yükleniyor...
Küçük Resim

Tarih

2011

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Polska Akad Nauk, Polish Acad Sciences, Inst Metall & Mater Sci Pas

Erişim Hakkı

info:eu-repo/semantics/openAccess

Özet

In this study, three notch geometries were assessed with different stress concentration factors. The severity of a notch increased with the stress concentration, hence the fatigue lives dramatically reduced due to increasing stress concentration factor. Fatigue life predictions for the notch geometries have been performed by using a critical strain life approach. It is shown that the model provides a reasonable fatigue life estimation for various notch geometries, volume fraction, and reinforcement particle size of the Al metal matrix composites. Typical crack initiation sites related with the particle clusters, large particles, and intermetallic particles. Although, crack propagation in the reinforced alloy occurred predominantly in the matrix material, SiC particles (SiCp) played a significant role in influencing the crack path.

Açıklama

WOS: 000290464500012

Anahtar Kelimeler

MMCs, Fatigue, life prediction, notch behavior

Kaynak

Archives Of Metallurgy And Materials

WoS Q Değeri

Q3

Scopus Q Değeri

Q4

Cilt

56

Sayı

1

Künye