The invention discloses a continuous
fiber reinforced three-dimensional woven composite bulletproof helmet and a preparation method thereof. The method comprises the following steps: firstly, designing an axial lining
yarn organization structure with a stable structure; carrying out three-dimensional surveying and mapping on a helmet mold, and carrying out one-time forming knitting on the bulletproof helmet preform through flat knitting local knitting and a holding
ring type needle retracting and releasing knitting method according to the three-dimensional
hyperboloid structure of the helmet by adopting the axial lining
yarn tissue structure; and then carrying out
compression molding by adopting a resin film
permeation process to prepare the continuous
fiber reinforced composite bulletproof helmet. The bulletproof helmet made of the three-dimensional woven
composite material is compact in structure, free of layering, uniform in overall thickness, free of
lap joint and reinforcement of a main body material, continuous in
fiber distribution, free of buckling, uniform in quality, high in material
utilization rate and stable in performance, and meets the protection requirement. The defects that a traditional bulletproof helmet is tedious in process, low in production efficiency, high in
processing cost, low in material
utilization rate, discontinuous in fiber fracture, poor in manual layering and size stability and the like are overcome.