Thermomechanics of damage and fatigue by a phase field model. Issue 5 (3rd May 2016)

• Record Type: Journal Article
• Authors: Amendola, G.; Fabrizio, M.; Golden, J. M.
• Is Part Of: Journal of thermal stresses. Volume 39:Issue 5(2016)
• Page Start: 487
• Page End: 499
• Publication Date: 2016-05-03
• Subjects: Damage -- fatigue -- phase transition -- thermodynamics; Thermal stresses -- Periodicals; 620.1121
• DOI: 10.1080/01495739.2016.1152140
• Languages: English
• ISSNs: 0149-5739

Abstract

ABSTRACT: In this paper, we present an isothermal model for describing damage and fatigue by the use of the Ginzburg–Landau (G–L) equation. Fatigue produces progressive damage, which is related with a variation of the internal structure of the material. The G–L equation studies the evolution of the order parameter, which describes the constitutive arrangement of the system and, in this framework, the evolution of damage. The thermodynamic coherence of the model is proved. In the last part of the work, we extend the results of the paper to a nonisothermal system, where fatigue contains thermal effects, which increase the damage of materials.