Fabrication of multi-layer radar absorbing structures based on continuous fiber 3D printing and thickness correction method

Jin, Do-Hyeon; Hyun, Jong-Min; Lee, Jung-Ryul; Ahn, Joon-Mo

doi:10.1080/09243046.2023.2283681

Advanced Composite Materials

2023

DOI: 10.1080/09243046.2023.2283681

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Fabrication of multi-layer radar absorbing structures based on continuous fiber 3D printing and thickness correction method

Do-Hyeon Jin,

Jong-Min Hyun,

Jung-Ryul Lee

et al.

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2024

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Cited by 3 publications

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Evaluation of electromagnetic characteristics of 3D-printed radar absorbing structures based on three-dimensional period pattern surface

Hyun,

Lee

2024

Measurement

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Evaluation of electromagnetic characteristics of 3D-printed radar absorbing structures based on three-dimensional period pattern surface

Hyun,

Lee

2024

Measurement

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Path planning and inspection of complex-shaped 3D-printed composites based on robotic pulse-echo laser ultrasonic testing

Lee,

Lee

2024

Advanced Composite Materials

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Design and verification of the square convex surface multilayer radar absorbing structure based on additive manufacturing

Jin,

Park,

Lee

et al. 2024

Jnl of Sandwich Structures & Materials

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This paper presents a novel approach to addressing electromagnetic property variations in 3D printed structures using additive manufacturing (AM). Utilizing continuous fiber 3D printing, the focus is on designing and fabricating a square convex surface multilayer radar absorbing structure (RAS) tailored for obliquely incident electromagnetic (EM) waves. Variations in complex permittivity due to structural shape-influenced changes in nozzle paths in AM-fabricated 3D printed structures are observed. To counter this, a ‘Process Permittivity Correction Method’ is developed, enhancing design and fabrication accuracy. Before optimizing each structure of the RAS, the process permittivity, which varies according to the structural shape and the set nozzle paths, was applied in the design. The optimized RAS, considering both TE and TM modes at a 60° incident angle, showed a high correlation between the trends of interpreted and measured absorption performance. This approach effectively corrects electromagnetic property variations in 3D printed structures, ensuring consistency between design and manufacturing while maintaining EM properties and absorption performance.

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Fabrication of multi-layer radar absorbing structures based on continuous fiber 3D printing and thickness correction method

Cited by 3 publications

References 33 publications

Evaluation of electromagnetic characteristics of 3D-printed radar absorbing structures based on three-dimensional period pattern surface

Evaluation of electromagnetic characteristics of 3D-printed radar absorbing structures based on three-dimensional period pattern surface

Path planning and inspection of complex-shaped 3D-printed composites based on robotic pulse-echo laser ultrasonic testing

Design and verification of the square convex surface multilayer radar absorbing structure based on additive manufacturing

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