Experimental investigation of the compressive strength of polylactic acid/continuous glass fiber composite material produced with an extrusion-based 3D printer using the simultaneous impregnation system of fibers and polymer

Articles in Press

Document Type : Original Article

Author

Faculty of Mechanical Engineering, Sirjan University of Technology, Sirjan, Kerman, Iran

10.22034/ijme.2024.442326.1929

Abstract

With the introduction of additive manufacturing processes and 3D printers, a lot of research has been done and is being done in this field. Most of the research done in the fused deposition modeling method is related to increasing the mechanical properties of the printed samples. Optimization of process parameters, addition of metal and non-metal filler particles, use of post-processing operations (types of heat treatment, use of ultrasonic waves, etc.), and use of continuous fibers are the main methods used. The most effective method for increasing mechanical properties, especially tensile mechanical properties, is the use of continuous fibers with high strength such as carbon, glass, and aramid. Of course, the use of continuous natural fibers such as linen, hemp, etc. has also been considered. This research aims to investigate the compressive properties of 3D-printed samples using the fused deposition modeling method. In this regard, the compressive strength of polymer samples made of neat polylactic acid and composite samples of polylactic acid/continuous glass fiber is investigated. It is clear that if the continuous fibers are placed in the direction of applying the compressive load, they are not able to withstand the compressive load. Therefore, in this research, by placing the fibers in the direction perpendicular to the direction of the load and considering the phenomenon of transverse strain, the fibers are subjected to tension, and the compressive strength of the composite sample increases by 10% compared to the pure polymer sample.

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Iranian Journal of Manufacturing Engineering

Articles in Press, Accepted Manuscript
Available Online from 21 March 2024

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