Analysis of Impact Resistance of Graphite Reinforced Carbon Fiber Composite Blades Based on Ansys Impact Model
In order to solve the problems of high brittleness and poor lateral impact resistance of aircraft engine blades,the impact load simulation method based on display dynamics is presented in this paper Taking the carbon fiber composite blades with high mechanical properties as the research object,the impact model was established,and the impact energy and velocity were compared and analyzed,the stress distribution,strain and damage of carbon fiber composite blades are studied.The results show that the density and elastic modulus of carbon fiber composites are changed,the interfacial force is increased,and the transverse impact and wear resistance are enhanced.Under the same impact load,the residual stress and strain of the modified carbon fiber blade were reduced by 11.9%and 6.4%,respectively.
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