Analytical Modelling of High Velocity Impacts of Cylindrical Projectiles on Carbon/Epoxy Laminates Articles uri icon

publication date

  • August 2009

start page

  • 1223

end page

  • 1230

issue

  • 8

volume

  • 40

international standard serial number (ISSN)

  • 1359-835X

electronic international standard serial number (EISSN)

  • 1878-5840

abstract

  • In this work an analytical model has been developed in order to predict the residual velocity of a cylindrical steel projectile, after impacting into a woven carbon/epoxy thin laminate. The model is based in an energy balance, in which the kinetic projectile energy is absorbed by the laminate through three different mechanisms: linear momentum transfer, fiber failure and laminate crushing. This last mechanism needs the quantification of the through-thickness compressive strength, which has been evaluated by means of quasi-static punch tests. Finally, high velocity impact tests have been accomplished in a wide range of velocities, to validate the model.