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Study on Mechanical Performances of 3D Printed composite material with diverse topology shapes using Finite Element Method

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Abstract
Application of the topology shape within a control space of the structure can ensure high energy
absorption capacity, stiffness and strength for a load and boundary condition. In recent years,
researchers have studied a continuous fiber 3D printing method with enhanced mechanical
performance while being able to flexibly manufacture a complex shape in the application of a
topology shape. Therefore, in this study structural analysis using finite element method was
performed for the conditions under which tension and bending load act on a continuous fiber
3D printed composite specimens with various topology shapes. To investigate the influence of
topology shape on the mechanical performance, the diverse topology shapes were designed as
a square, rectangle, rhombus, and hexagon. Also, to examine the effect of infill density, 40 and
80 holes were considered. As a result of finite element analysis, according to the topology
shape, it was found that the rhombus has the highest mechanical performance under tension
load. For the bending load, the hexagon has high strength and stiffness while being the shape
that can be lightened. Additionally, there were shapes in which the mechanical strength was
decreased or maintained even with the increase of the infill density, and the result was that the
increase in strength and stiffness was not constant. In conclusion, it is necessary to perform an
optimization design for not only the topology shape but the infill density to design an efficient
3D printed composite structure.
Author(s)
정동기서형석
Issued Date
2021
Type
Article
Keyword
FEA3D PrintingFiber reinforced compositeTopology shape
DOI
10.1088/2631-6331/ac1914
URI
https://oak.ulsan.ac.kr/handle/2021.oak/8813
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_crossref_primary_10_1088_2631_6331_ac1914&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Study%20on%20Mechanical%20Performances%20of%203D%20Printed%20composite%20material%20with%20diverse%20topology%20shapes%20using%20Finite%20Element%20Method&offset=0&pcAvailability=true
Publisher
Functional Composites and Structures
Location
영국
Language
영어
Citation Volume
3
Citation Number
3
Citation Start Page
035003
Citation End Page
035003
Appears in Collections:
Engineering > Aerospace Engineering
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