Influence of the distance between projectiles in simultaneous multiple impacts on CFRP laminates Articles uri icon

publication date

  • August 2024

start page

  • 17075

end page

  • 17087

issue

  • 18

volume

  • 45

International Standard Serial Number (ISSN)

  • 0272-8397

Electronic International Standard Serial Number (EISSN)

  • 1548-0569

abstract

  • Composite structures in the aerospace and railway industries frequently
    experience single or multiple low- or high-velocity impacts. The dynamic
    behavior of composite structures under single impacts cannot be extrapolated
    to multiple impacts. This study investigates the influence of the distance between
    projectiles in simultaneous multiple impact scenarios using a finite element model
    for multiple impacts on carbon fiber-reinforced polymer (CFRP) laminate plates.
    The critical distance between projectiles, where stress wave interaction becomes
    significant, was identified. Results indicate that a distance between the centres of
    the projectiles of approximately two to three times the projectile diameter is the
    most damaging for simultaneous multiple impacts.

subjects

  • Aeronautics
  • Mechanical Engineering

keywords

  • cfrp plates; high-velocity; numerical model; perforation; projectiles distance; simultaneous impact; stress waves interaction