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A mean-field micromechanical model of thermal-ratcheting behavior in short fiber-reinforced metal matrix composites / Hideaki Tsukamoto in Acta materialia, Vol. 58 N° 10 (Juin 2010) 

Public ISBD [article]  in Acta materialia > Vol. 58 N° 10 (Juin 2010) . - pp. 3709–3717 Titre : A mean-field micromechanical model of thermal-ratcheting behavior in short fiber-reinforced metal matrix composites Type de document : texte imprimé Auteurs : Hideaki Tsukamoto, Auteur Année de publication : 2011 Article en page(s) : pp. 3709–3717 Note générale : Métallurgie Langues : Anglais (eng) Mots-clés : Metal  matrix  composites  (MMCs)  Thermal  ratcheting  Internal  stress  Micromechanical  modeling Résumé : Thermal-ratcheting behavior in short fiber-reinforced metal matrix composites has been investigated. The internal stresses due to mismatch in thermal expansion coefficients between the fiber and matrix in the composites can introduce anomalous deformation under thermal-cycling conditions with or without external mechanical loads. This study has resulted in a more comprehensive understanding of such thermal-ratcheting behavior in short fiber-reinforced composites subject to a wide range of external uniaxial loads based on a mean-field micromechanical model considering the local mass transfer by diffusion along the fiber–matrix interface. The validity of the model has been verified through systematic experiments with directionally solidified Al–Al3Ni eutectic composites. DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science/article/pii/S1359645410001539 [article] A mean-field micromechanical model of thermal-ratcheting behavior in short fiber-reinforced metal matrix composites [texte imprimé] / Hideaki Tsukamoto, Auteur . - 2011 . - pp. 3709–3717. Métallurgie Langues : Anglais (eng) in Acta materialia > Vol. 58 N° 10 (Juin 2010) . - pp. 3709–3717 Mots-clés : Metal  matrix  composites  (MMCs)  Thermal  ratcheting  Internal  stress  Micromechanical  modeling Résumé : Thermal-ratcheting behavior in short fiber-reinforced metal matrix composites has been investigated. The internal stresses due to mismatch in thermal expansion coefficients between the fiber and matrix in the composites can introduce anomalous deformation under thermal-cycling conditions with or without external mechanical loads. This study has resulted in a more comprehensive understanding of such thermal-ratcheting behavior in short fiber-reinforced composites subject to a wide range of external uniaxial loads based on a mean-field micromechanical model considering the local mass transfer by diffusion along the fiber–matrix interface. The validity of the model has been verified through systematic experiments with directionally solidified Al–Al3Ni eutectic composites. DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science/article/pii/S1359645410001539