RT Journal Article
T1 Experimental and numerical study of the thermo-viscoplastic behavior of nicro 12.1 for perforation tests
A1 Alonso Elías, Eva
A1 Rusinek, Alexis
A1 Rubio Díaz, Ignacio
A1 Rodríguez Millán, Marcos
A1 Miguélez Garrido, María Henar
AB Dynamic impact tests using thin metal plates for ballistic characterization have received significant attention in recent years. The Johnson–Cook (J–C) model is extensively used in numerical modeling of impact and penetration in metals. The AISI (American Iron and Steel Institute) 301 steel family presents good impact behavior, excellent formability, and high corrosion resistance. Thus, NICRO (Nickel and Hard Chrome Plated Steel) 12.1 (part of the AISI 301 steel family) was chosen in this work, although parameters of the J–C model or impact results were not found in the literature. In this work, NICRO 12.1 steel plates, were characterized in ballistics with an initial impact velocity up to 200 m/s and three shape nose projectiles. The Johnson–Cook parameters for the NICRO 12.1 steel were calculated for a large range of temperatures and strain rates. Impact tests were carried out using three projectiles: conical, hemispherical, and blunt. The ballistic curves, failure mode, and maximum deformation obtained with each projectile, experimentally and numerically, were compared, and a good correlation was obtained
SN 1996-1944
YR 2020
FD 2020-09-27
LK https://hdl.handle.net/10016/35381
UL https://hdl.handle.net/10016/35381
LA eng
DS e-Archivo
RD 1 sept. 2024