Open AccessMechanical properties and failure mechanisms of 3D-printed PLA scaffolds: A preliminary study
Author(s) -
B. I. Mitrin,
Sergei V. Chapek,
Evgeniy V. Sadyrin,
Michael Swain
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1029/1/012074
Subject(s) - polylactic acid , materials science , composite material , deformation (meteorology) , composite number , fused filament fabrication , modulus , fabrication , porosity , 3d printing , yield (engineering) , compression (physics) , polymer , medicine , alternative medicine , pathology
Polylactic acid (PLA) porous composite scaffolds with three different infill patterns were subjected to compression testing. The composites were fabricated by 3D printing based on Fused Filament Fabrication (FFF) technology. Stress-strain curves were obtained which allowed to identify Young’s modulus, yield point and residual strain of samples. 3D tomography images were taken before and after deformation. Comparison between images corresponding to a particular sample were used to identify deformation and failure mechanisms.