Aluminum alloys exhibit an attractive
combination of mechanical and physical properties such as high stiffness and
low density, which favors their utilization in many structural applications.
Thus, increasing the structural applications of aluminum alloy is the driving
force for the need to adequately understand its deformation and failure
mechanisms under various types of dynamic loading conditions. In this study,
full field plastic deformation of AA6061-T6 aluminum alloy at high strain-rates
under compressive and torsion loads are measured using split Hopkinson
compression, torsion Kolsky bars, and a high speed digital image correlation
system. The stress-strain curves obtained using the high speed digital cameras
are compared with results obtained from the elastic waves in the compression and
torsion bars. A post deformation analysis of the specimen also shows strain
localization along narrow adiabatic shear bands in the AA6061-T6 alloy.
Cite this paper
G. Owolabi, D. Odoh, A. Peterson, A. Odeshi and H. Whitworth, "Measurement of the Deformation of Aluminum Alloys under High Strain Rates Using High Speed Digital Cameras," World Journal of Mechanics, Vol. 3 No. 2, 2013, pp. 112-121. doi: 10.4236/wjm.2013.32009.
 F. Yarzdani, M. N. Bassim and A. G. Odeshi, “The Formation of Adiabatic Shear Bands in Copper during Torsion at High Strain Rates,” Procedia Engineering, Vol. 1, No. 1, 2009, pp. 225-228.
 T. Ozel and E. Zeren, “Finite Element Analysis of the Influence of Edge Roundness on the Stress and Temperature Fields Induced by High Speed Machining,” International Journal of Advanced Manufacturing Technology, Vol. 35, No. 3-4, 2007, pp. 255-267.
 H. Feng and M. N. Bassim, “Finite Element Modeling of the Formation of Adiabatic Shear Bands in AISI 4340 Steel,” Journal of Materials Science and Engineering: A, Vol. 266, No. 1-2, 1999, pp. 255-260.
 G. T. Gray, “Classic Split Hopkinson Pressure Bar Testing,” ASM Handbook, Vol. 8, 2000, pp. 462-476.
 A. Gilat, “Torsional Kolsky Bar Testing,” ASM Handbook, Vol. 8, 2000, pp. 505-515.
 R. Moulart, F. Pierron, S. Hallet and M. Wisnom, “Full-Field Strain Measurements at High Strain Rate on Notched Composites Tested with a Tensile Hopkinson Bar,” Annual SEM (Society for Experimental Mechanics) Conference, Albuquerque, 1-4 June 2009, pp. 1-6.
 A. Gilat, T. E. Schmidt and A. L. Walker, “Full Field Strain Measurement in Compression and Tensile Split Hopkinson Bar Experiments,” Experimental Mechanics, Vol. 49, No. 2, 2009, pp. 291-302.
 J. Kajberg, K. G. Sundin, L. G. Melin and P. Stahle, “High Strain-Rate Tensile Testing and Viscoplastic Parameter Identification Using Microscopic High-Speed Photography,” International Journal of Plasticity, Vol. 20, No. 4-5, 2004, pp. 561-575.
 A. S. Kobayash, “SEM Handbook of Experimental Mechanics,” Prentice-Hall, Inc., New Jersey, 1987, pp. 388-429.
 D. Lecompte, H. Sol, J. Vantomme and A. Habraken, “Analysis of Speckle Patterns for Deformation Measurements by Digital Image Correlation,” SPIE Digital Library, Vol. 6341, 2006, Article ID: 63410E.
 C. Cofaru, W. Phillips and W. Van Paepegem, “Evaluation of Digital Image Correlation Techniques Using Ground Truth Speckle Images,” Journal of Measurements Science and Technology, Vol. 21, No. 5, 2010, Article ID: 055102. doi:10.1088/0957-0233/21/5/055102
 G. B. Burger, A K. Gupta, P. W. Jeffrey and D. J. Lloyd, “Microstructural Control of Aluminum Sheet Used in Automotive Applications,” Materials Characterization, Vol. 35, No. 1, 1995, pp. 23-39.
 G. S. Cole and A. S. Sherman, “Lightweight Materials for Automotive Applications,” Materials Characterization, Vol. 35, No. 1, 1995, pp. 3-9.
 G. Lucas, “Aluminum Structural Applications,” Advance Materials and Processes, Vol. 149, No. 5, 1996, pp. 29-30.
 B. Irving, “Interest in Welded Aluminum Automobiles Gathers Momentum Worldwide,” Welding Journal, Vol. 77, No. 6, 1998, pp. 31-35.
 H. Demir and S. Gündüz, “The Effects of Aging on Machinability of 6061 Aluminum Alloy,” Materials and Design, Vol. 30, No. 5, 2009, pp. 1480-1483.
 S. M. Touchal, F. Morestin and M. Brunet, “Various Experimental Applications of Digital Image Correlation Method,” CMEM ’97, Rhodes Island, 21-23 May 1997, pp. 45-58.
 Y. Xu and M. A. Meyers, “Nanostructural and Micro-structural Aspects of Shear Localization at High Strain Rates,” In: B. Dodd and Y. Bai (Eds.), Adiabtic Shear Localization—Frontiers and Advances, 2nd Edition, Elsevier Insights, Elsevier Publishers, Amsterdam, 2012, pp. 111-164.