Modelling of mixed damage on fibre reinforced composite laminates subjected to low velocity impact

Author (s): Curiel, J.L., Phaneendra, S. and Muñoz, J.J.
Journal: International Journal of Damage Mechanics

Volume: 22, Number 3
Pages: 356 – 374
Date: 2013

This article presents a numerical technique for the computation of damage in fibre-reinforced laminated composites which is embedded into an explicit finite element method. The technique is composed of two main components. First, a novel characterisation of the directions in which the various modes of damage propagate, which produces an effective damage localisation. This is conducted taking into consideration the strain-rate dependence. Second, a new mapping between the strain and stress spaces for the computation of the damage surfaces whereby time-stepping convergence is enhanced. Additionally, new damage initiation criteria in terms of strain damage surfaces are presented. Details of the in-house code developed are presented as well as the programming features. The capabilities of the technique are shown by means of tests on single fibre-reinforced element and low velocity impact on the laminate. It is shown that delamination is located in the expected regions by gradual progression of internal damage variables.



  Author   = {Curiel, Jos{'e} L and Phaneendra, Sukumar  and Mu{\~n}oz, Jos\'e J},
  Title    = {Modelling of mixed damage on fibre-reinforced composite laminates subjected to low velocity impact},
  Fjournal = {International Journal of Damage Mechanics},
  Journal  = {Int. J. Dam. Mech.},
  Volume   = {22},
  Number   = {3},
  Pages    = {356--374},
  Year     = {2013}}