Effect Of Tensile Test Specimen Geometry On Mechanical Property Of 3D Printed Single Struts

Mat Yusof, Azira (2019) Effect Of Tensile Test Specimen Geometry On Mechanical Property Of 3D Printed Single Struts. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The lattice-structure material is a light-weighted material which suitable for lightweight structural application. Elementary unit of lattice structure is single strut which connects two nodes. It is important to know mechanical properties of single strut as they contribute to lattice structure performance. Elastic property is one of the mechanical properties which can be obtained through tensile test. Best elastic property data comes from suitable tensile test specimen geometry. This study is conducted to determine the specimen geometry effect on elastic property of tensile test for acrylonitrile butadiene styrene (ABS) 3D printed single strut specimen. Single struts with geometrical shape (Dogbone) and without geometrical shape (Cylinder) are designed by using a CAD software which is Solidworks. Then, single struts are fabricated by using CubePro 3D printer. Next, tensile test is conducted to single strut specimens. From tensile test, data on Young’s modulus is established. Furthermore, hypothesis test is applied on the Young’s modulus data to verify the theory made. The engineering conclusions are concluded from hypothesis test on specimen geometry effect on elastic property of tensile test for ABS 3D printed single strut specimen.

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