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- Article name
- Computer modeling of curved fiber trajectories and a control algorithm for 3D-printing of bio-inspired fasteners for aerospace composite structures
- Authors
- VOLKOVA O. Yu., , sklemina97@yandex.ru, Blagonravov Mechanical Engineering Research Institute of the RAS, Moscow, Russia
POLYAKOV A. E., , apadd@mail.ru, Blagonravov Mechanical Engineering Research Institute of the RAS, Moscow, Russia
POLILOV A. N., , polilovan@mail.ru, Blagonravov Mechanical Engineering Research Institute of the RAS, Moscow, Russia
TIAN X., , leoxyt@hotmail.com, State Key Laboratory for Manufacturing Systems Engineering Xi'an Jiaotong University, Xi'an, China
- Keywords
- polymer composite materials / 3D printing / continuous fibers / curved reinforcement paths / biomimetic structures / riveted and bolted joints / stress concentration
- Year
- 2026 Issue 3 Pages 16 - 22
- Code EDN
- MFSAAQ
- Code DOI
- 10.52190/2073-2562_2026_3_16
- Abstract
- This article describes algorithms for generating curved fiber paths and controlling 3D printing with continuous fibers along calculated curved paths, as well as a manufacturing technology and testing methodology for bio-inspired fastening joints of composite parts that enhance their load-bearing capacity. Calculations show that curved reinforcement significantly reduces the effect of stress concentrations near holes on strength. The requirements for the algorithm controlling the speed of the extruder heads curved motion during 3D printing with bundles of continuous fibers impregnated with a thermoplastic polymer are discussed. Experimental studies have shown that samples with curved reinforcement have a maximum load and specific strength that are 26 % and 64 % higher, respectively, than those with straight fibers.
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