A non-dimensional theoretical approach to model high-velocity impact on thick woven plates Articles uri icon

publication date

  • March 2021

start page

  • 717

end page

  • 737

issue

  • 6

volume

  • 38

International Standard Serial Number (ISSN)

  • 1229-9367

Electronic International Standard Serial Number (EISSN)

  • 1598-6233

abstract

  • A theoretical energy-based model to capture the mechanical response of thick woven composite laminates, which are used in such applications as maritime or aerospace, to high-velocity impact was developed. The dependences of the impact phenomenon on material and geometrical parameters were analysed making use of the Vaschy-Buckingham Theorem to provide a non-dimensional framework. The model was divided in three different stages splitting the physical interpretation of the perforation process: a first where different dissipative mechanisms such as compression or shear plugging were considered, a second where a transference of linear momentum was assumed and a third where only friction took place. The model was validated against experimental data along with a 3D finite element model. The numerical simulations were used to validate some of the new hypotheses assumed in the theoretical model to provide a more accurate explanation of the phenomena taking place during a high-velocity impact.

subjects

  • Mechanical Engineering

keywords

  • analytical modelling; energy-absorption; frp; impact behavior; numerical modelling