Work

Enhancing interfacial performance and fracture toughness of carbon fibre reinforced thermoplastic composites

Year: 2024

Type: article

Abstract: Enhancing the interlaminar fracture toughness of composites significantly improves their load bearing capacity and structural integrity over longer service life by improving their resistance to delamination. The effect of hybrid toughening of Elium-based thermoplastic composites involving polydopamine (PDA), multi-walled carbon nanotubes (MWCNTs) sizing, and polyphenylene sulfide (PPS) veil interlayers was investigated to observe the mechanical response using 3-point bending, interlaminar shear strength, and Mode I fracture toughness tests. The enhancement of fibre–matrix adhesion contributed to improvements in both flexural strength and interlaminar shear strength, while additional toughening mechanisms, such as PDA bridging, PPS pull-out and breakage, and fibre bridging, enhanced the Mode I interlaminar fracture toughness by 218%.

Source: Composites Part A Applied Science and Manufacturing

DOI: 10.1016/j.compositesa.2024.108434

Authors: Yao Chen, Vishnu Prasad, Miray Yasar, Neal Murphy, Alojz Ivankovic

Institution: University College Dublin

Language: English

Topic: Fiber-reinforced polymer composites

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,520

Funder: Science Foundation Ireland