Tensile behavior of functionally graded sandwich PLA-ABS produced via fused filament fabrication process

Abstract

The study investigated the tensile behavior of Sandwich Functionally Graded Material (SFGM) fabricated using Additive Manufacturing (AM) technology experimentally and numerically. SFGMs are characterized by a gradual variation in composition and structure with respect to the forming volume from the lower and upper surfaces of the structure toward the center, resulting in a corresponding change in material properties. Fused Filament Fabrication (FFF), a widely used AM process, was used in the present work to fabricate the thermoplastic polymer-based SFGM specimens. SFGM were produced by the FFF method using ABS and PLA materials and subjected to tensile tests according to ASTMD638.

Keywords:

• Additive manufacturing
• functionally graded material
• sandwich structure
• tensile behavior
• acrylonitrile benzidine styrene
• polylactic acid