FINITE ELEMENT SIMULATION ANALYSIS OF ROTOR COMPOSITE BLADE DAMAGE UNDER BULLET IMPACT

Abstract

Abstract: In order to investigate the damage of helicopter rotor blade under high speed bullet hitting, the FEM was used to analyze the rotor blade impact damage. The finite element model of composite blade is built based on ABAQUS, applying the 3D composite failure criterion based Hashin criteria to judge the ballistic damage and stiffness reduction. Through the FEM simulation results, the ballistic damage of the blade can be observed visually. Compared with the experimental results, the accuracy and validity of the results are proved. The simulation analysis of the blade ballistic under different conditions is carried out, which can predict the blade ballistic damage and provide some reference for the against-ballistic design of blade structure.

Key words: composite blade, against-ballistic, failure criterion, finite element method

CLC Number:

TB332

LI Xiao-bin, FANG Ke, SHEN Ya-juan. FINITE ELEMENT SIMULATION ANALYSIS OF ROTOR COMPOSITE BLADE DAMAGE UNDER BULLET IMPACT[J]. Fiber Reinforced Plastics/Composites, 2020, 0(1): 33-38.

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