FIELD: transport.
SUBSTANCE: invention relates to aircraft engineering, particularly, to aircraft laminar composite element. Structural element comprises laminar composite with edge, impact indicator located at said edge and including polymer destructing at impact. Proposed method of damage indication comprises impact indicator breakage. In compliance with first version, method of making impact indicator comprises extruding polymer from nozzle. In compliance with second version, proposed method comprises bonding indicator with edge by joint hardening. In compliance with third version, proposed method consists in that every layer of laminar composite comprises reinforcement phase and polymer matrix phase and includes introducing impact indicator in female die, creating clearance between edge and female die and heating laminar composite so that polymer matrix phase flows in said clearance to form impact indicator.
EFFECT: simplified method.
19 cl, 10 dwg
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