Work

Trade‐Offs Between Viscoelastic and Impact Performance in CFF ‐Printed Onyx Composites: A Taguchi L27 Study With MARCOS / CRITIC / FUCOM

Year: 2025

Type: article

Abstract: ABSTRACT Additive manufacturing of continuous fiber‐reinforced thermoplastics enables tailoring of stiffness, damping, and toughness; however, optimization is complicated by intrinsic trade‐offs between these properties. In this study, continuous fiber‐reinforced Onyx composites were fabricated using a Taguchi L27 design varying orientation, infill pattern, fiber type, and infill percentage. Dynamic mechanical analysis (DMA) and Izod impact testing revealed competing trends: for example, Exp. 3 (0°/Triangle/Carbon/50%) showed the highest damping with E ″ = 831 MPa but reduced impact strength (24.7 kJ m −2 ), while Exp. 11 (45°/Triangle/Glass/40%) provided the highest toughness (44.2 kJ m −2 ) at the expense of stiffness ( E ′ = 1.07 GPa). By contrast, Exp. 2 (0°/Triangle/Carbon/40%) exhibited a balanced performance with E ′ = 5.28 GPa, E ″ = 556 MPa, and Izod = 41.2 kJ m −2 , and was identified by the CRITIC–FUCOM–MARCOS framework as the best compromise solution. These findings demonstrate that no single configuration maximizes all properties, but trade‐offs can be systematically resolved through multi‐criteria decision‐making. The study highlights the relevance of combining Taguchi experimental design with hybrid optimization methods for guiding performance‐driven selection of printed continuous fiber composites. The outcomes demonstrate that hybrid optimization enables tailoring of continuous fiber composites for lightweight, impact‐resistant applications in aerospace and automotive sectors.

Source: SPE Polymers

DOI: 10.1002/pls2.70022

Authors: Hariharasakthisudhan Ponnarengan, Sathish Kannan, Logesh Kamaraj, Nabil Hassan, Saeed Fahad Abdulqader Ahmad Alhajri, Rahmat Agung Susantyoko

Institutions: Amity University, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Dubai Electricity and Water Authority

Language: English

Topic: Additive Manufacturing and 3D Printing Technologies

Subfield: Automotive Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,310

Funder: Dubai Electricity and Water Authority