Experimental Prediction and Numerical Modeling of Ductile Damage and Failure Modeling of Aluminium Sheet Metal Specimen

Abstract:

Aluminium sheet metal is nowadays used to fabricate lighter, crashworthy, fuel efficient and environment friendly vehicles. Ductile damage of sheet metals affects significantly the crashworthiness, as it naturally exhibits anisotropic behavior due to the grain orientation. Johnson-Cook (J-C) damage model is widely used in numerical simulation for assessing the failure modeling of crash component in particular at high strain rate. The Johnson-Cook material model available in literature is meant for isotropic material behavior which cannot be used directly for anisotropic behavior of materials. To characterize the plastic anisotropy of the rolled sheet, the modified Johnson-Cook material model should be developed. In this research the combination of experimental work and numerical analysis with clear and simpler calibration strategy for damage model is demonstrated. It aims to reduce laboratory tests using advanced numerical analysis to predict failure in order to save overall cost and development time.

• Periodical: Applied Mechanics and Materials (Volume 852)
• Pages: 369-374
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.852.369
• Online since: September 2016
• Authors: M. Nalla Mohamed*, A. Praveen Kumar, A. Adil Malik
• Keywords: Anisotropic Material, Crashworthiness, High Strain Rate, Johnson-Cook Model

References

[1] Totten G E, Mackenzie D S, Handbook of Aluminum: Physical metallurgy and processes M. Vol. 1 Boca Ration: CRC Press, (2003).

[2] A.A.A. Alghamdi, Collapsible impact energy absorbers: an Overview, Thin-Walled Struct. (2001) 189–213.

DOI: 10.1016/s0263-8231(00)00048-3

[3] Reid, S. R. Plastic deformation mechanisms in axially compressed metal tubes used as impact energy absorbers. Int. J. of Mech Sci, 35. 12 (1993): 1035-1052.

DOI: 10.1016/0020-7403(93)90054-x

[4] Reza esmaeilizadeh, Kourosh khalili, Bagher mohammad sadeghi, Hossein Arabi, Simulated and experimental investigation of stretch sheet forming of commercial AA1200 aluminum alloy, Trans. Nonferrous Met. Soc. China (2014) 484−490.

DOI: 10.1016/s1003-6326(14)63086-7

[5] Bakhshi-Jooybari M., The study of spring-back of CK67 steel sheet in V-die and U-die bending processes, Materials and Design, Mater. Des. (2009) 2410-2419.

DOI: 10.1016/j.matdes.2008.10.018

[6] A. Jaamialahmadi, M. Kadkhodayan, An Investigation into the Prediction of Forming Limit Diagrams for Normal Anisotropic Material Based on Bifurcation Analysis, J. Appl. Mech. (2011) 1-10.

DOI: 10.1115/1.4003351

[7] Vial. C, Hosford, W. F and Caddell, R. M, Yield Loci of anisotropic sheet metals, Int. J. of Mech. Sci. (1983) 899-915.

DOI: 10.1016/0020-7403(83)90020-6

[8] Aleksandrovic S, stefanovic M, adamovic D, lazic V. Variation of normal anisotropy ratio r, during plastic forming. J. of Mech. Engg., (2009) 392−399.

[9] Nagel, Gregory M., and David P. Thambiratnam. Dynamic simulation and energy absorption of tapered thin-walled tubes under oblique impact loading. Int. J. of Impact Eng. 32. 10 (2006) 1595-1620.

DOI: 10.1016/j.ijimpeng.2005.01.002

[10] El Amri, Abdelouahid, Numerical simulation of damage evolution and mechanical properties for ductile materials. S31 Modeles, Etudes de cas (2015).

[11] F. Grytten a, T. Borvik, O.S. Hopperstad, M. Langseth, Low velocity perforation of AA5083-H116 aluminium plates, Int. J. of Impact Eng. (2009) 597–610.

DOI: 10.1016/j.ijimpeng.2008.09.002

[12] Abaqus, Reference Manual v 6. 14, Abaqus Inc., (2014).