Influence of projectile shape on dynamic behavior of steel sheet subjected to impact and perforation
Article dans une revue avec comité de lecture
The paper describes a work focused on the process of perforation of steel sheet.Experimental,analytical and numerical investigations have been carried out to analyze in details the perforation process.Based on these approaches,the ballistic properties of the material and the failure modes depending on the projectile nose shape(conical,blunt or hemispherical) have been studied.Different failure modes have been observed,including petaling, plug ejection and circumference necking.The special study about the number of petals has been done for different nose angles using conical shape projectiles.The complete energy balance is also reported and the absorbed energy by the steel sheet has been obtained by measuring initial and residual projectile velocities.A wide range of impact velocities from 35to180m/s has been covered during the tests.All the projectiles are 13mm in diameter and the plates are1mm thick.Moreover,the mass ratio(projectile mass/steel sheet mass) and the ratio between the span of the steel sheet and the diameter of the projectile are constant, equal to 0.38 and 3.85, respectively.
Showing items related by title, author, creator and subject.
Article dans une revue avec comité de lectureJANKOWIAK, Tomasz; RUSINEK, Alexis; KPENYIGBA, K. M.; PESCI, Raphaël (Techno-press, 2014)The paper is reporting some comparisons between experimental and numerical results in terms of failure mode, failure time and ballistic properties of mild steel sheet. Several projectile shapes have been considered to take ...
Article dans une revue avec comité de lectureKPENYIGBA, K. M.; JANKOWIAK, Tomasz; RUSINEK, Alexis; PESCI, Raphaël; WANG, Bin (Elsevier, 2015)In this paper an experimental and numerical work is reported concerning the process of perforation of thin steel plates using different projectile nose shapes. The main goal is to analyze how the projectile shape may change ...
Numerical Simulation of the effect adiabatic temperature increase in martensitic transformation of austenitic steels Conférence invitéeZAERA, Ramon; CASADO, Alvaro; RODRIGUEZ-MARTINEZ, José A.; RUSINEK, Alexis; PESCI, Raphaël; FERNANDEZ-SAEZ, José (2011)The predictions of the constitutive model agree with experimental results in terms of macroscopy stress-strain curves and volume fraction of martensite formed during loading
Thermo-viscoplastic behavior of 304 austenitic stainless steel at various strain rates and temperatures: Testing, modeling and validation Article dans une revue avec comité de lectureJIA, Bin; RUSINEK, Alexis; PESCI, Raphaël; BAHI, Slim; BERNIER, Richard (Elsevier, 2020)This paper presents a systematic study of the thermo-viscoplastic behavior of a 304 austenitic stainless steel (ASS). The experiments were conducted over a wide range of strain rates (10 − 3 s − 1 to 3270 s − 1 ) and ...
Simple shear behavior and constitutive modeling of 304 stainless steel over a wide range of strain rates and temperatures Article dans une revue avec comité de lectureJIA, Bin; RUSINEK, Alexis; PESCI, Raphaël; BERNIER, Richard; BAHI, Slim; BENDARMA, Amine; WOOD, Paul (Elsevier, 2021)A novel single shear specimen (SSS) together with a correction coefficient method is used to study the deformation behavior of a 304 stainless steel under shear loadings. Shear stress-shear strain relations over a wide ...