Plate-impact-driven ring expansion test (PIDRET) for dynamic fragmentation

Autor: Gant Fanny, Seisson Gabriel, Longère Patrice, El Maï Skander, Zinszner Jean-Luc
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: EPJ Web of Conferences, Vol 250, p 01013 (2021)
Druh dokumentu: article
ISSN: 2100-014X
DOI: 10.1051/epjconf/202125001013
Popis: A new experimental set-up mounted at the muzzle of a singlestage gas gun has been designed in order to study the fragmentation of metallic rings under dynamic radial expansion. This concept takes advantage of the quasi-incompressibility of HDPE whose radial flow under plate impact-like loading is used to apply a pressure boundary condition at the ring’s inner surface. For the experimental configurations considered in the present work, the average strain rate in the ring reaches values close to 104 s-1. The repeatability and the reliability of the experiments are verified for rings made of steel and aluminium.
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