Abstract
This paper presents a planar reinforcement (PR) method for fused deposition modeling. In the proposed PR method, planar reinforcing parts, such as metal sheets or carbon fiber film (CFF), are placed inside the structures laminated by additive manufacturing. The tensile, bending stiffness, and vibration characteristics of the planar reinforced structures were evaluated using mechanical tests (tensile, bending, and impact hammer tests). The mechanical properties of the planar reinforced specimens were compared with those of other specimens built by polylactic acid (PLA) and short carbon fiber reinforcement thermoplastic (SFRTP) filaments. Results show that the planar reinforced structures have greater stiffness than the other specimens. The experimental results are analyzed using the mixture equation of composite materials, and the difference in reinforcement effect caused by metal and CFF sheets is discussed.
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Abbreviations
- E :
-
Young’s modulus
- I :
-
Area moment of inertia
- M :
-
Bending moment
- 1/R :
-
Curvature of bending deformation
- K :
-
Bending stiffness
- δ :
-
Measured deflection
- P :
-
Vertical load
- L :
-
Beam length
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This work received partial supports from the start-up funding of new faculty in Sungkyunkwan University (S-2019-2803-0000).
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Tae Hyun Kim is an M.S. student at School of Mechanical Engineering of Sungkyunkwan University in South Korea. He received the B.S. degree from School of Mechanical and Control Engineering of Handong Global University in Pohang, Korea (2019). His research interests are about additive manufacturing (3D print), topology optimization, and multiphysics modeling.
Eun-Ho Lee is an Assistant Professor at School of Mechanical Engineering of Sungkyunkwan University in South Korea. He received the Ph.D. degree from the Mechanical Engineering Department of KAIST in 2015, and has been studying the theory of mechanics for scientific study and engineering applications.
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Kim, TH., Lee, EH. Planar reinforcement by sheet type stiffeners for fused deposition modeling. J Mech Sci Technol 34, 4201–4209 (2020). https://doi.org/10.1007/s12206-020-0912-y
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DOI: https://doi.org/10.1007/s12206-020-0912-y