@Article{, title={Experimental Study of 3D Printing Density Effects on the Mechanical Properties of the Carbon-Fiber and Polylactic Acid Specimens}, author={Mohammed R. Ahmed and Ihsan A. Baqer and Wafa A. Soud}, journal={Engineering and Technology Journal مجلة الهندسة والتكنولوجيا}, volume={37}, number={4part (A) Engineering}, pages={128-132}, year={2019}, abstract={Two 3D printed materials (Polylactic Acid and Carbon fiber) withvariable printing density have been investigated due to their practical uses inengineering utilization. The effect of printing density composites was studiedby the tensile test. The used materials stress-strain curves were analyzed tofind modulus of elasticity and the ultimate tensile strength of the mentionedmaterials. The results manifested that carbon fiber has the highest strength -weight ratio. On the other hand, the carbon fiber showed more ductility thanthe Polylactic Acid. The results of this work will be aiding the researchers orengineering students to decide which material is suitable for 3D printingapplications.

} }