Analysis of high velocity impacts of steel cylinders on thin carbon/epoxy woven laminates Articles uri icon

publication date

  • January 2013

start page

  • 623

end page

  • 629

issue

  • January

volume

  • 95

international standard serial number (ISSN)

  • 0263-8223

electronic international standard serial number (EISSN)

  • 1879-1085

abstract

  • In this work a numerical model was developed to predict the behavior of thin woven laminates under high velocity impacts. The material model, implemented in a user subroutine to be used with a commercial FE code, takes into account different failure mechanisms. The inter-lamina failure prediction is achieved by means of the use of cohesive elements. Finally, in order to validate the model, experimental tests were accomplished in a wide range of velocities from 100 to 400 m/s. Residual velocity of the projectile and damaged area of the laminates are compared with the numerical results. Once the model is validated, a further investigation has been made in order to analyze the influence of projectile slenderness on the laminate response.

keywords

  • carbon fiber ; composite; ballistic; numerical model ; cohesive elements