Numerical Study of Round-Robin Tests on the Split Hopkinson Pressure Bar Technique

Muhammad A. Kariem; Dong Ruan; John H. Beynon

doi:10.4028/www.scientific.net/KEM.535-536.518

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 535-536Numerical Study of Round-Robin Tests on the Split...

Numerical Study of Round-Robin Tests on the Split Hopkinson Pressure Bar Technique

Abstract:

It is known that the split Hopkinson pressure bar (SHPB) technique has not been standardised yet. The standardised SHPB technique is necessary in order to provide guidelines for determining the intrinsic material properties. This paper examines whether consistent results can be achieved from various sets of SHPBs. Finite element analysis has been conducted using ANSYS/LS-DYNA. Numerical simulation of the round-robin tests was conducted to study the consistency of results for OFHC copper, which were obtained from three sets of apparatus, namely: 12.7 mm diameter SHPB made from the AISI 4140 steel, 13 mm diameter SHPB made from the high strength steel (HSS) and 14.5 mm diameter SHPB made from maraging steel 350 (AISI 18Ni). The current study shows that consistent flow stresses (within an acceptable error of 2.5%) were obtained from those three sets of SHPBs, which indicates the possibility of SHPB standardisation in the future.

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Periodical:

Key Engineering Materials (Volumes 535-536)

Pages:

518-521

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.535-536.518

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Online since:

January 2013

Authors:

Muhammad A. Kariem, Dong Ruan, John H. Beynon

Keywords:

Consistency of Result, Numerical Study, Round-Robin Tests, Split Hopkinson Pressure (Kolsky) Bar, Standardised SHPB

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