• français
    • English
    français
  • Login
Help
View Item 
  •   Home
  • Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux (LEM3)
  • View Item
  • Home
  • Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux (LEM3)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Three-dimensional constitutive model for structural and functional fatigue of shape memory alloy actuators

Article dans une revue avec comité de lecture
Author
CHEMISKY, Yves
HARTL, Darren
301080 Texas A&M University [College Station]
ccMERAGHNI, Fodil
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]

URI
http://hdl.handle.net/10985/12916
DOI
10.1016/j.ijfatigue.2018.03.016
Date
2018
Journal
International Journal of Fatigue

Abstract

A three-dimensional constitutive model is developed that describes the behavior of shape memory alloy actuators undergoing a large number of cycles leading to the development of internal damage and eventual catastrophic failure. Physical mechanisms such as transformation strain generation and recovery, transformation-induced plasticity, and fatigue damage associated with martensitic phase transformation occurring during cyclic loading are all considered within a thermodynamically consistent framework. Fatigue damage in particular is described utilizing a continuum theory of damage. The total damage growth rate has been formulated as a function of the current stress state and the rate of martensitic transformation such that the magnitude of recoverable transformation strain and the complete or partial nature of the transformation cycles impact the total cyclic life as per experimental observations. Simulation results from the model developed are compared to uniaxial actuation fatigue tests at different applied stress levels. It is shown that both lifetime and the evolution of irrecoverable strain are accurately predicted by the developed model.

Files in this item

Name:
LEM3_FATIGUE_2018_MERAGHNI.pdf
Size:
857.5Kb
Format:
PDF
View/Open

Collections

  • Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux (LEM3)

Related items

Showing items related by title, author, creator and subject.

  • Endommagement en fatigue du PA66 renforcé par des fibres de verre courtes : modélisation micromécanique et stratégie d'identification multi - échelles 
    Communication avec acte
    DESPRINGRE, Nicolas; CHEMISKY, Yves; ccFITOUSSI, Joseph; ccMERAGHNI, Fodil (2015)
    Cet article présente un modèle micromécanique visco-endommageable pour les composites à matrice thermoplastique renforcée par des fibres de verre courtes et soumis à un chargement en fatigue. L'approche multi-échelles ...
  • Periodic homogenization for fully coupled thermomechanical modeling of dissipative generalized standard materials 
    Article dans une revue avec comité de lecture
    CHATZIGEORGIOU, George; CHARALAMBAKIS, Nicolas; CHEMISKY, Yves; ccMERAGHNI, Fodil (Elsevier, 2016)
    The current work deals with periodic thermomechanical composite media, in which the material constituents are considered to obey the generalized standard materials laws. The aim is to provide a proper homogenization framework ...
  • Multiscale fatigue damage characterization in short glass fiber reinforced polyamide-66 
    Article dans une revue avec comité de lecture
    ARIF, Muhamad Fatikul; CHEMISKY, Yves; ROBERT, Gilles; ccFITOUSSI, Joseph; ccMERAGHNI, Fodil; ccSAINTIER, Nicolas (Elsevier, 2014)
    This paper aims at studying fatigue damage behavior of injection molded 30 wt% short glass fiber reinforced polyamide-66 composite (PA66/GF30). The evolution of dynamic modulus, hysteresis area, cyclic creep and temperature ...
  • Three-Dimensional Constitutive Model Considering Transformation-Induced Damage and Resulting Fatigue Failure in Shape Memory Alloys 
    Conférence invitée
    HARTL, Darren; CHEMISKY, Yves; ccMERAGHNI, Fodil (SPIE, 2014)
    In this work, a constitutive model is developed that describe the behavior of shape memory alloys undergoing a large number of cycles, developing internal damage, and eventually failing. Physical mechanisms associated with ...
  • Micromechanical Fatigue Visco-Damage Model for Short Glass Fiber Reinforced Polyamide-66 
    Communication avec acte
    DESPRINGRE, Nicolas; CHEMISKY, Yves; ROBERT, Gilles; ccMERAGHNI, Fodil (Ibrahim Karaman, Raymundo Arróyave and Eyad Masad / Wiley, 2015)
    This work presents a micromechanical fatigue damage model developed for short glass fiber reinforced PA66. It has been developed to predict the high cycle fatigue behavior of PA66/GF30. The model is based on an extended ...

Browse

All SAMCommunities & CollectionsAuthorsIssue DateCenter / InstitutionThis CollectionAuthorsIssue DateCenter / Institution

Newsletter

Latest newsletterPrevious newsletters

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales