Abstract
Material properties under impact loading were studied by means of the split Hopkinson bar method. The paper describes the basic features of the equipment and gives the technical specifications of the matrials and components used. The equipment, which had been designed for uniaxial tensile loading, was adapted for pull-out bond testing, for cryogenic testing, and for biaxial compresion/tension testing. The various requirements and adjustments are dealt with and the principal results illustrating the various applications are reported. It is explained that testing equipment suited for strain rates between 0.05 and 25/sec. has been developed at fairly low cost.
Résumé
Les caractéristiques des matériaux sous des charges dynamiques sont étudiés par la méthode «split Hopkinson bar». La publication décrit les possibilités de base de l'équipement et donne les spécifications techniques des matériaux et des composants utilisés.
L'équipement, qui a été conçu pour des chargements uniaxials en traction, convient très bien pour des essais de détermiation de la traction d'adhérence par arrachement, pour des essais cryogéniques et pour des essais de compression/traction biaxials. On décrit les exigences et les différents réglages nécessaires et on donne les résultats principaux qui illustrent les différentes applications. On explique que l'équipement d'essai est adapté pour des vitesses de déformation entre 0,05 et 25/s, qui ont été réalisées pour un coût relativement bas.
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Reinhardt, H.W., Körmeling, H.A. & Zielinski, A.J. The split Hopkinson bar, a versatile tool for the impact testing of concrete. Materials and Structures 19, 55–63 (1986). https://doi.org/10.1007/BF02472311
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DOI: https://doi.org/10.1007/BF02472311