Original scientific paper

Creep rupture in fiber bundle model

A. Lahyani ; Laboratoire de physique de la matière condensée, Faculté des sciences El Jadida, B. P. 20, El Jadida, Maroc; Laboratoire de physique de la matière condensée, Faculté des sciences Ben M'sik, B.P. 7955, Casablanca, Maroc
Y. Boughaleb ; Laboratoire de physique de la matière condensée, Faculté des sciences El Jadida, B. P. 20, El Jadida, Maroc; Laboratoire de physique de la matière condensée, Faculté des sciences Ben M'sik, B.P. 7955, Casablanca, Maroc
M. Qjani ; Laboratoire de physique de la matière condensée, Faculté des sciences El Jadida, B. P. 20, El Jadida, Maroc
R. Nassif ; Laboratoire de physique de la matière condensée, Faculté des sciences El Jadida, B. P. 20, El Jadida, Maroc
S. Quaskit ; Laboratoire de physique de la matière condensée, Faculté des sciences Ben M'sik, B.P. 7955, Casablanca, Maroc
R. El Guerjouma ; LAUM UMR, CNRS, 6613, Université du Maine, Le Mans, France

Abstract

We study the creep rupture of fiber composites subjected to uniaxial constant load within the framework of the fiber bundle model. Our numerical studies show that in the primary creep, the deformation rate exhibits a power law relaxation followed by a power law acceleration in the tertiary creep. We also investigate the behavior of the failure time and the avalanche size distribution. A good agreement is found between experiments and the model prediction, particularly for deformation power-laws scaling in the primary-creep regime and in the tertiary-creep neighbourhood of rupture.

Keywords

fiber bundle model; heterogeneous materials; creep rupture; Langevin dynamics

Hrčak ID:

302720

URI

https://hrcak.srce.hr/302720

Publication date:

3.5.2009.

Article data in other languages: croatian

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