Skip to main content
Log in

DISLOCATION-BASED CONSTITUTIVE DESCRIPTION FOR MODELING OF THE 6008 ALUMINUM ALLOY BEHAVIOR

  • Published:
Journal of Applied Mechanics and Technical Physics Aims and scope

Abstract

The behavior of the 6008 aluminum alloy under impact loading with different strain rates is experimentally studied. Quasi-static compressive stress–strain curves of these materials are obtained in this study by using an RPL100 material testing machine and a split Hopkinson pressure bar. As the strain rate increases, the yield stress and the peak stress of the materials are found to increase significantly. The adiabatic temperature rise generated during the impact process makes the materials soften, so that the rate of the increase in the flow stress gradually decreases with an increase in the strain rate. Based on the dislocation dynamics theory, a viscoplastic dynamic constitutive model for the 6008 aluminum alloy is constructed. The model accurately describes and predicts the mechanical behavior of this material under impact compression at room temperature.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4

Similar content being viewed by others

REFERENCES

  1. M. Mokhtar, M. Z. M. Talib, and E. H. Majlan, “Recent Developments in Materials for Aluminum–Air Batteries: A Review," J. Industr. Eng. Chem. 32, 1–20 (2015).

  2. D. L. Holt, S. G. Babcock, S. J. Green, and C. J. Maiden, “The Strain-Rate Dependence of the Flow Stress in Some Aluminum Alloys," Trans. ASME 60, 152–159 (1967).

  3. K. Tanaka and T. Nojima, “Strain Rate Change Tests of Aluminium Alloys under High Strain Rate," in Proc. of the 19th Jpn. Congr. Mater. Res. (Tokyo, 1975), pp. 48–51.

  4. M. J. Dave and T. S. Pandya, “Dynamic Characterization of Bio-Composites under High Strain Rate Compression Loading with Split Hopkinson Pressure Bar and Digital Image Correlation Technique," Int. Wood Prod. J. 9, 115–121 (2018).

  5. F. J. Zerilli and R. W. Armstrong, “Dislocation-Mechanics-Based Constitutive Relations for Material Dynamics Calculations," J. Appl. Phys. 61, 1816–1825 (1987).

  6. S. Nemat-Nasser and Y. Li, “Flow Stress of FCC Polycrystals with Application to OFHC Cu," Acta Mater. 46, 565–577 (1998).

  7. Z. W. Zhou, W. Ma, and S. J. Zhang, “Experimental Investigation of the Path-Dependent Strength and Deformation Behaviours of Frozen Loess," Eng. Geol. 265 (105), 4–9 (2020).

  8. G. R. Johnson and W. H. Cook, “A Constitutive Model and Data for Metals Subjected to Large Strains. High Rates and High Temperatures," in Proc. of the 7th Int. Symp. on Ballistics, Hague, Netherlands, April 19–21, 1983 (Roy. Inst. of Eng. in the Netherlands, Hague, 1983), pp. 541–547.

  9. G. R. Johnson and W. H. Cook, “Fracture Characteristics of Three Metals Subjected to Various Strains, Strain Rates, Temperatures, and Pressures," Eng. Fract. Mech. 21 (1), 31–48 (1985).

  10. D. N. Zhang, D. N. Shangguan, and C. J. Xie, “A Modified Johnson–Cook Model of Dynamic Tensile Behaviors for 7075-T6 Aluminum Alloy," J. Alloys Compounds 619, 186–194 (2015).

  11. M. Burley, J. E. Campbell, and J. Dean, “Johnson–Cook Parameter Evaluation from Ballistic Impact Data via Iterative FEM Modelling," Int. J. Impact Eng. 112, 180–192 (2018).

  12. Q. Xie, Z. Zhu, and G. Kang, “Thermal Activation Based Constitutive Model for High-Temperature Dynamic Deformation of AZ31B Magnesium Alloy," Mater. Sci. Eng. A 743 24–31 (2019).

  13. A. E. Buzyurkin, I. L. Gladky, and E. I. Kraus, “Determination of Parameters of the Johnson–Cook Model for the Description of Deformation and Fracture of Titanium Alloys," Prikl. Mekh. Tekh. Fiz. 56 (2), 188–195 (2015) [J. Appl. Mech. Tech. Phys.56 (2), 330–336 (2015)].

  14. E. I. Galindo-Nava and C. M. F. Rae, “Microstructure-Sensitive Modelling of Dislocation Creep in Polycrystalline FCC Alloys: Orowan’s Theory Revisited," Mater. Sci. Eng. A 651, 116–126 (2016).

  15. S. I. Rao, C. Woodward, T. A. Parthasarathy, and O. Senkov, “Atomistic Simulations of Dislocation Behavior in a Model FCC Multicomponent Concentrated Solid Solution Alloy," Acta Mater.134, 188–194 (2017).

  16. R. Kapoor and S. Nemat-Nasser, “Determination of Temperature Rise during High Strain Rate Deformation," Mech. Mater.27, 1–12 (1998).

  17. W. G. Guo and S. Nemat-Nasser, “Flow Stress of Nitronic-50 Stainless Steel over a Wide Range of Strain Rates and Temperatures," Mech. Mater. 38, 1090–1103 (2006).

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Zh. Zhu.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Feng, C., Zhu, Z., Xiao, S. et al. DISLOCATION-BASED CONSTITUTIVE DESCRIPTION FOR MODELING OF THE 6008 ALUMINUM ALLOY BEHAVIOR. J Appl Mech Tech Phy 61, 1016–1023 (2020). https://doi.org/10.1134/S0021894420060152

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S0021894420060152

Keywords

Navigation