Correlations on Average Tensile Strength of 3D‐Printed Acrylonitrile Butadiene Styrene, Polylactic Acid, and Polylactic Acid + Carbon Fiber Specimens

In view of reducing development and production costs of components in the fields such as automobile, aviation, sports, and biomedical, additive manufacturing (AM) holds immense utility. Herein, three samples of 3D‐printed material specimens namely acrylonitrile butadiene styrene (ABS), polylactic acid (PLA) and polylactic acid + carbon fiber (PLA + CF) are fabricated at 0°, 45°, and 90° orientations using fused deposition modeling (FDM) and subsequently their mechanical properties are evaluated. Scanning electron microscopy (SEM) images are presented to observe the failure behavior. The uncertainty analysis performed on measured and obtained parameters reveals the maximum error of ±0.312% and ±0.3218%, respectively. From the obtained experimental results, correlations on average tensile strength in terms of elastic modulus, percent strain, standard deviation, and printing orientations are presented for each of the materials. ABS and PLA + CF specimens show the agreement of co‐relational with experimental data which lies within ±10% whereas ±3% for PLA specimens. Although on reinforcing with CF, the strength of PLA + CF samples increases considerably at all orientations as compared to PLA and ABS, virgin PLA reported greater elastic modulus as compared with PLA + CF, therefore virgin PLA finds better utilization wherever stiffness is the key requirement in design.