Adiabatic shear localization : occurrence, theories and by coll.

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47] performed geometry experiments with pre-shocked materials (304 and 316L) with the same hat-shaped specimen. The pre-shocked material condition shows a higher yield stress and a shorter strain-hardening stage as unshocked material. The failure strain is also lower in contrast to the unshocked state. Lins et al. [48] also used a hat-shaped specimen with an additional compression stress to investigate a hot-rolled, interstitial-free steel in a Hopkinson assembly with different deformation limits to investigate the microstructural appearances of shear bands.

The development of shear bands was determined by microscopy and finite element simulations of the compression/shear specimen. Pursche [36] and Pursche and Meyer [37] examined different quenched and tempered steels with different heat-treatment conditions with a hardness range between 300 and 600 HB. The propensity of adiabatic shear failure of the materials was determined with the bi-axial dynamic compression/shear test. 24). Under static loading, both tempering conditions can be deformed to the prescribed deformation limit without failure.

48B) has a narrower cross section for the shear zone obtained. 46 Double-shear specimen, according to Campbell and Ferguson [117]. 47 SHPB apparatus, according to Campbell and Ferguson [117]. 48 Double-shear specimen, according to Harding and Huddart [118]. For this behaviour, the increasing adiabatic condition is possible. The shear behaviour is more accurately expressed with the modified specimen. 46) as Campbell and Ferguson [117] and cited in ASM Handbook No. 49) with relatively high velocities with a tubular transmitter bar for a low-alloy steel.

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