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Steel and Composite Structures
  Volume 17, Number 2, August 2014 , pages 185-198

Constitutive model coupled with damage for carbon manganese steel in low cycle fatigue
Zhiyong Huang, Qingyuan Wang, Daniele Wagner and Claude Bathias

    Carbon-manganese steel A42 (French standards) is used in steam generator pipes of nuclear center and subject to low cycle fatigue (LCF) loads. In order to obtain the material LCF behavior, the tests are implemented in a hydraulic fatigue machine. The LCF plastic deformation and cyclic stress in macroscope have been influenced by the accumulated low cycle fatigue damage. The constitutive kinematic and isotropic hardening modeling is modified with coupling fatigue damage to describe the fatigue behavior. The improved model seems to be good agreement with the test results.
Key Words
    low cycle fatigue; fatigue damage; carbon manganese steel; plastic deformation
(1) Zhiyong Huang, Qingyuan Wang:
School of Aeronautics and Astronautics, Sichuan University, No. 29 Jiuyanqiao Wangjiang Road, Chengdu, 610064, China;
(2) Daniele Wagner, Claude Bathias:
Université ParisOuest Nanterre La Défense, 50 rue de Sèvres, Ville d'avray, 92410, France.

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