Influence of Process Parameters on the Mechanical Properties of Carbon Fibre Reinforced PETG

Document Type : Research Article

Authors

1 Department of Mechanical Engineering, Ramco Institute of Technology, Rajapalayam, 626 117, Tamil Nadu, India

2 Department of Mechanical Engineering, P.S.R. Engineering College, Sivakasi, 626140, Tamilnadu, India

Abstract

The research analyses the impact of different compositions of carbon fibre on mechanical and thermal attributes of Fused Filament Fabricated (FFF) Polyethylene Terephthalate Glycol (PETG) composites. Three different types of carbon fibre composite (10%, 20%, and 30% content) were manufactured for analysis against pure PETG material. The tests analysed the mechanical performance through compressive strength analysis, along with flexural strength measurements and measurements of hardness. The characterizing tests included Vicat Softening Temperature alongside Heat Deflection Temperature assessment. The research used ASTM standard testing methods to validate experimental measurements through finite element simulations using ANSYS Workbench ACP®. Integration of carbon fibre components improved the total mechanical behaviour of the PETG material. PETG without fibre demonstrated 53 MPa compressive strength, while 30% CF-PETG achieved 58 MPa compressive strength. The flexural strength measurements mirrored those changes, starting from 54 MPa and reaching 80 MPa across the same compositions. The Shore Hardness measurement (D) experienced an elevation as the carbon fibre concentration in materials grew from 71 to 77. Vicat Softening Temperature and Heat Deflection Temperature values improved alongside carbon fibre content increases. The experimental results matched closely with simulation outputs from the analysis, thus validating its accuracy. Research data shows that PETG materials improve their mechanical and thermal qualities when carbon fibre is incorporated, thereby creating promising prospects for specific applications needing advanced performance levels.

Keywords

Main Subjects

References

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Mechanics of Advanced Composite Structures
Volume 13, Issue 1 - Serial Number 27
In Progress
April 2026
Pages 171-184

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