Structural topology optimization and process research based on continuous carbon fiber 3D printing
In this paper,"elliptical runway"prototypes were prepared by 3D printing technology to study the effects of different fiber angles and fiber layer distributions on the mechanical properties of the prototypes,and the fracture modes in various mechanical tests were tested experimentally.Then,the topology of the three-point bending beam,C-clamp and cartridge cantilever was optimized based on the topology optimization theory of variable density,and verified by mechanical performance tests.The results show that anisotropic mechanical properties are observed in all mechanical tests,in which the fiber direction has the highest strength and stiffness,while the spanwise direction has lower strength and stiffness.The topologically optimized continuous carbon fiber 3D-printed bullet rack cantilever structure can withstand extreme operating conditions through finite element analysis and compression testing.
bullet rack cantilevertopology optimizationcontinuous carbon fiber3D printingvariable density method