Interfacial performance and fracture patterns of 3D printed continuous carbon fiber with sizing reinforced PA6 composites
By Tengfei Liu, X. Tian, Manyu Zhang, D. Abliz, Dichen Li, G. Ziegmann. Composites. Part A, Applied science and manufacturing, 2018
192 citations recorded by the source corpus.
Abstract A sizing procedure was utilized in 3D printing of continuous fiber reinforced thermoplastic composites (CFRTPCs) process to improve their interfacial performance. The sized carbon fiber (SCF) reinforced PA6 (SCF/PA6) was successfully printed, exhibiting 42.2% higher interlaminar shear strength (ILSS) than that of virgin carbon fiber (VCF) reinforced PA6 (VCF/PA6). The influence of sizing and printing process on interfacial performance and fracture patterns was studied systematically. Weak interfacial performance with large fiber pull-out was observed in VCF/PA6. Strong interfacial performance with fiber cut-off arose in SCF/PA6 under excessive forming pressure. They were both detrimental to mechanical properties. Moderate interfacial performance with finite fiber pull-out in SCF/PA6 under decent forming pressure achieved maximum 82% and 246% increasement in flexural strength and modulus respectively. The interface optimization strategy for 3D printed CFRTPCs was set up, which could speed up the technological progress for practical industrial applications.
Subfields: Automotive Engineering, Biomedical Engineering, Industrial and Manufacturing Engineering
View Paper: https://www.semanticscholar.org/paper/f6e61b0eea86fccee4a90e565dd1f32c44034662
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Citations in the corpus
- Material extrusion additive manufacturing of continuous fibre reinforced polymer matrix composites: A review and outlook (2021, methodology): “Delamination and de-bonding between fibre and matrix were observed in the failed specimens [154, 88, 172, 58, 95].”