Abstract
ObjectivesThis paper presents an approach to numerical modeling of hypervelocity impact on carbon fiber reinforced plastics (CFRP). MethodsThe approach is based on the detailed meso-scale representation of a composite laminate. Material models suitable for explicit modeling of laminate structure, including fiber-reinforced layers and resin-rich regions, are described. Two numerical impact tests with significantly different impact energies were conducted on thermoplastic AS4/PEEK materials with quasi-isotropic layups. Simulations employed both SPH and Finite element methods. ResultsResults of simulations are verified against experimental data available from the literature and demonstrate good correlation with the experiments. ConclusionsDeveloped modeling approach can be used in simulations where post-impact damage progression in composite material is of the main focus.
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