Investigating the mode one interlaminar performance of semi-woven 3D printed hybrid composites
Year: 2024
Type: article
Abstract: Interlaminar performance governs a composites’ ability to resist delamination and cracking between plies. It is hypothesised that the interlaminar fracture toughness of hybrid composites exhibit a linear relationship based on the volume of the constituent materials. To validate this hypothesis, the interlaminar performance of 3D printed intraply hybrid semi-woven composites was investigated using double cantilever beam (DCB) samples. The hybrid composites were fabricated from two types of tow-preg filaments that consist of either carbon or glass fibres impregnated with polyamide , referred to as low elongation (LE) and high elongation (HE) materials respectively. The experimental results of propagation interlaminar fracture toughness of semi-woven hybrid composites aligns well with the linear rule of mixtures (ROM) predictions. Scanning electron microscopy (SEM) provided microstructural insights into fracture mechanisms , exhibiting different fracture surface features that varied with the ratio of low elongation (LE) material. These findings show that the linear ROM can predict the interlaminar performance of semi-woven intraply hybrid composites based on the material properties of the constituent material properties, offering a straightforward method for optimising fracture toughness by adjusting the ratio of fibres within the composite structure.
Source: Composite Structures
Authors: Cheng Huang, Michael Norton, Mathew W. Joosten
Institution: Deakin University
Language: English
Subfield: Mechanics of Materials
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,440
OpenAlex ID: W4405316438