An evaluation of constitutive relations for high-rate material behaviour using the tensile Hopkinson-bar

J. Noble , J. Harding

Tensile tests have been performed on specimens of Remco iron at strain rates from quasi-static to -2500/s and high-speed photography has been used to monitor the deformation of the specimen in tests at the highest rates. The DYNA 2D finite element code and the Johnson-Cook and Zerilli-Armstrong constitutive relations have been used to model the specimen behaviour in the impact test and the numerical predictions are compared with experimental measurements.

Domaines: Articles anciens

J. Noble, J. Harding. An evaluation of constitutive relations for high-rate material behaviour using the tensile Hopkinson-bar. Journal de Physique IV Proceedings, 1994, 04 (C8), pp.C8-477-C8-482. ⟨10.1051/jp4:1994874⟩. ⟨jpa-00253435⟩