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Contributions of interfaces on the mechanical behavior of 3D printed continuous fiber reinforced composites

Article dans une revue avec comité de lecture
Author
LI, Shixian
557928 School of Traffic and Transportation Engineering
WANG, Kui
557928 School of Traffic and Transportation Engineering
ZHU, Wanying
557928 School of Traffic and Transportation Engineering
AHZI, Said
217648 Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie [ICube]
PENG, Yong
ccCHINESTA SORIA, Francisco
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]

URI
http://hdl.handle.net/10985/22296
DOI
10.1016/j.conbuildmat.2022.127842
Date
2022-07
Journal
Construction and Building Materials

Abstract

3D printing using continuous fiber reinforcement provides a new technical method for preparing complex components with high mechanical behaviors. However, these printed composites have great differences in interfacial behaviors, affecting overall performance. This study aimed to investigate the tensile behaviors of 3D printed continuous fiber filled composites. The structural evolutions and failure features of the composites induced by strain were analyzed with the consideration of interfaces, influenced by the reinforcement fibers, stacking sequences as well as raster orientations. A roller peeling test was conducted to quantify the interfacial strength of different materials. An analytical approach was proposed to predict the stiffness behavior of the printed composites by introducing an interfacial strengthening coefficient into the volume average stiffness model. The predictions of stiffness, for the 3D printed continuous fiber filled composites with different fibers, stacking sequences and raster orientations, were in good agreement with experimental results.

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