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Constitutive modeling of elastic-visco-plastic behaviors in aluminum alloys subjected to cyclic loadings at various strain rates

Felfeli, M ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.1177/0309324714557850
  3. Publisher: SAGE Publications Ltd , 2015
  4. Abstract:
  5. In this article, simulations of the stress-strain behavior in aluminum alloys were investigated under cyclic loadings at various strain rates. Four plasticity approaches were applied to simulate cyclic behaviors. To validate obtained results, strain-controlled tensile-compressive fatigue tests were performed in the low cycle fatigue regime. Isothermal fatigue experiments were conducted at various strain rates. Thermo-mechanical fatigue experiments were carried out at different rates of cooling and heating processes. Numerical results demonstrated a good agreement with experimental data at the mid-life cycle of the material. Material constants for different models were also presented for aluminum alloys, at various strain rates
  6. Keywords:
  7. Alloys ; Aluminum ; Aluminum alloys ; Cyclic loads ; Fatigue of materials ; Fatigue testing ; Isotherms ; Life cycle ; Stresses ; Compressive fatigue ; Elastic viscoplastic ; Elastic-vicsoplastic simulation ; Isothermal fatigue ; Low cycle fatigues ; Numerical results ; Stress-strain behaviors ; Thermo mechanical fatigues (TMF) ; Strain rate
  8. Source: Journal of Strain Analysis for Engineering Design ; Volume 50, Issue 2 , December , 2015 , Pages 103-124 ; 03093247 (ISSN)
  9. URL: http://sdj.sagepub.com/content/50/2/103