Publication: Experimental and numerical study of the thermo-viscoplastic behavior of nicro 12.1 for perforation tests
Loading...
Identifiers
Publication date
2020-09-27
Defense date
Advisors
Tutors
Journal Title
Journal ISSN
Volume Title
Publisher
Impact
Export
Abstract
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
Description
Keywords
Dynamic Characterization, Failure Mode, Johnson-Cook Model
Bibliographic citation
Alonso-Elías, E., Rusinek, A., Rubio-Díaz, I., Bernier, R., Rodríguez-Millán, M., & Miguelez, M. H. (2020). Experimental and Numerical Study of the Thermo-Viscoplastic Behavior of NICRO 12.1 for Perforation Tests. In Materials (Vol. 13, Issue 19, p. 4311). MDPI AG.