Evaluation of Mechanical Properties of 3D-Printed ABS

Fused deposition modeling (FDM) has been a fast-growing 3D printing technology. Many of the parts printed with this technology are composed of acrylonitrile butadiene styrene (ABS). In this study, we evaluate the tensile strength characteristics of 3D printed ABS parts. Specimens with a dog bone geometry were printed using the ASTM D638-14 Standard Test Method for Tensile Properties of Plastics. A flat build orientation was used with varying raster orientation of either 0o or 90o on the build plate. An Instron Tensile Testing machine was used to evaluate the stress-strain characteristics of each specimen and determine Young's Modulus and the yield strength of the parts. Results showed that there was a negligible effect on Young's Modulus and yield strength for the different raster orientations.