3D 프린터에 공급되는 PLA 필라멘트의 물성치 측정
Measurement of Structural Properties of PLA Filament as a Supplier of 3D Printer
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다운로드
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참고문헌
키워드
초록
Most of agricultural structures are consisted of complex components and exposed to various boundary conditions. There have been no ways to expressthose structures exactly for model experiment. As an alternative, 3D printer can produce any type of solid model. However, there are limited informationsrelated to structural experiments using 3D printer. The object of this study gives the basic informations to structural engineers who try to use 3D printerfor model experiment. When PLA was used as a supplier for 3D printer, the outcomes showed less heat deformation to compare with ABS. To test thematerial properties, two kinds of experiments (three-point flexibility test and compression test) were executed using universal testing machine. Inthree-point flexibility test, plastic hinge and its deformation were developed as observed in material such as steel. The behavior was in a linear elasticstate, and elastic bending modulus and yield force were evaluated. In the compression test using unbraced columns with hinge-hinge boundary condition,the constant yield forces were observed regardless of different lengths in all columns with same section size, whereas the compressive elastic moduluswas increased as the length of column was increased. The suggested results can be used for model experiments of various agricultural structures consistedof single material.
Abstract
Most of agricultural structures are consisted of complex components and exposed to various boundary conditions. There have been no ways to expressthose structures exactly for model experiment. As an alternative, 3D printer can produce any type of solid model. However, there are limited informationsrelated to structural experiments using 3D printer. The object of this study gives the basic informations to structural engineers who try to use 3D printerfor model experiment. When PLA was used as a supplier for 3D printer, the outcomes showed less heat deformation to compare with ABS. To test thematerial properties, two kinds of experiments (three-point flexibility test and compression test) were executed using universal testing machine. Inthree-point flexibility test, plastic hinge and its deformation were developed as observed in material such as steel. The behavior was in a linear elasticstate, and elastic bending modulus and yield force were evaluated. In the compression test using unbraced columns with hinge-hinge boundary condition,the constant yield forces were observed regardless of different lengths in all columns with same section size, whereas the compressive elastic moduluswas increased as the length of column was increased. The suggested results can be used for model experiments of various agricultural structures consistedof single material.
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