Computational Mechanics

, Volume 27, Issue 6, pp 504–512 | Cite as

A computational approach to the investigation of impact damage evolution in discontinuously reinforced fiber composites

  • H. K. Lee


 A micromechanical damage constitutive model for discontinuous fiber-reinforced composites is developed to perform impact simulation. Progressive interfacial fiber debonding and a crack-weakened model are considered in accordance with a statistical function to describe the varying probability of damage. Emanating from a constitutive damage model for aligned fiber-reinforced composites, a micromechanical damage constitutive model for randomly oriented, discontinuous fiber-reinforced composites is developed. The constitutive damage model is then implemented into a finite element program DYNA3D to simulate the dynamic behavior and the progressive damage of composites. Finally, numerical simulations for a biaxial loading test and a four-point bend impact test of composite specimens are performed to validate the computational model and investigate impact damage evolution in discontinuous fiber-reinforced composite structures. Furthermore, in order to address the influence of Weibull parameter S o on the damage evolution in composites, parametric analysis is carried out.


Impact Test Load Test Fiber Composite Damage Evolution Element Program 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2001

Authors and Affiliations

  • H. K. Lee
    • 1
  1. 1.Department of Civil, Architectural, and Environmental Engineering, University of Miami, Coral Gables, FL 33124-0630 e-mail: hklee@miami.eduUS

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