Experimental Survey on the Behaviour of AISI 304 Steel Sheets Subjected to Perforation Articles uri icon

publication date

  • December 2010

start page

  • 966

end page

  • 978

issue

  • 12

volume

  • 48

international standard serial number (ISSN)

  • 0263-8231

electronic international standard serial number (EISSN)

  • 1879-3223

abstract

  • This paper presents and analyzes the behaviour of AISI 304 steel sheets subjected to perforation under a wide range of impact velocities. The relevance of this steel resides in the potential
    transformation of austenite into martensite during mechanical loading. This process leads to an increase in strength and ductility of the material. It makes the AISI 304
    attractive for many engineering applications, especially for building
    structural elements responsible for absorbing energy under fast loading.
    However, this transformation takes place only under determined loading
    conditions strongly dependent on initial temperature and deformation
    rate. In order to study the material behaviour under impact loading,
    perforation tests have been performed at room temperature using both, a
    drop weight tower and a pneumatic gas gun within the range of impact
    velocities 2.5 m/s≤V0≤85 m/s. The results are compared with those reported in [18] and [21]
    for ES steel and TRIP 1000 steel. The comparison highlights the good
    performance of the AISI 304 under high loading rates. Martensitic
    transformation taking place in this steel during perforation is
    identified responsible for such behaviour.