APPLICATION OF DIGITAL IMAGE CORRELATION TECHNIQUE TO TENSILE TEST FOR PRINTED PLA SPECIMENS

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International Journal of 3D Printing Technologies and Digital Industry
Volume:2 Issue:2
APPLICATION OF DIGITAL IMAGE CORRELATION TECHNIQUE TO TENSILE TEST FOR PRINTED PLA SPECIMENS

APPLICATION OF DIGITAL IMAGE CORRELATION TECHNIQUE TO TENSILE TEST FOR PRINTED PLA SPECIMENS

Authors : Murat AYDIN, Özkan ÖZ

Pages : 1-7

View : 29 | Download : 8

Publication Date : 2018-07-27

Article Type : Research Paper

Abstract :This study presents an approach to determine strain-stress curves of printed PLA material using 2D Digital Image Correlation insert ignore into journalissuearticles values(DIC); method. Besides, the present paper is an extended version of the previous study of the authors[1]. The tensile specimens were printed with a constant infill ratio and performed uniaxial tensile test with various test speeds. The elongations and local strains were measured with 2D DIC. Stress vs. strain curves were calculated from force data and DIC measurement. As a result, ultimate tensile stresses were directly proportional with the test speed increments, and maximum forces as well. The elongations were observed to decline during the test speed increments. It was underlined that the elongations gave the average results instead of the real behavior of the fractured area.
Keywords : 3D Printer, PLA, Digital Image Correlation, Tensile Test, Strain, Stress

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