In this study, it is attempted to improve the brittle behavior of basalt fibers in a woven fabric by mixing it with different content of nylon fibers. The purpose of using this hybrid composite is to combine the good mechanical property of basalt fiber with the excellent impact resistance of nylon fiber. Five different types of woven fabric were used as reinforcement, namely, a homogeneous basalt fabric, a homogeneous nylon fabric and three hybrid basalt/nylon fabrics by different content of nylon (25%, 33.3%, and 50%). For hybrid fabrics the percentage of nylon is equal in the warp and weft direction. The quasi-isotropic stacking sequences ([(+45,-45)/(0,90)]s) was selected for this study. The height of 3.3 m was chosen, corresponding to nominal impact energy of 40 J. To evaluate the residual strength, compressive after impact has been examined and compared. In addition, ultrasonic C-scan was used to determine extent and type of damage for impacted specimens. The results show that the basalt/nylon fiber content have significant effects on the residual strength of intraply hybrid composites that reinforced with these fibers. By increasing of basalt/nylon fibers content the critical and failure compression strength increased. The visual inspection and ultrasonic c-scan of the impact damaged specimens revealed that the nylon/basalt fiber content has a sufficient effect on the type and size of damage. Also, with increasing the nylon/basalt content, the most important failure mode was changed from fiber breakage to local buckling.

Compressive Residual Strength of Intraply Basalt/Nylon Hybrid Composite Laminates Subjected to Low-Velocity Impacts

MINAK, GIANGIACOMO
2009

Abstract

In this study, it is attempted to improve the brittle behavior of basalt fibers in a woven fabric by mixing it with different content of nylon fibers. The purpose of using this hybrid composite is to combine the good mechanical property of basalt fiber with the excellent impact resistance of nylon fiber. Five different types of woven fabric were used as reinforcement, namely, a homogeneous basalt fabric, a homogeneous nylon fabric and three hybrid basalt/nylon fabrics by different content of nylon (25%, 33.3%, and 50%). For hybrid fabrics the percentage of nylon is equal in the warp and weft direction. The quasi-isotropic stacking sequences ([(+45,-45)/(0,90)]s) was selected for this study. The height of 3.3 m was chosen, corresponding to nominal impact energy of 40 J. To evaluate the residual strength, compressive after impact has been examined and compared. In addition, ultrasonic C-scan was used to determine extent and type of damage for impacted specimens. The results show that the basalt/nylon fiber content have significant effects on the residual strength of intraply hybrid composites that reinforced with these fibers. By increasing of basalt/nylon fibers content the critical and failure compression strength increased. The visual inspection and ultrasonic c-scan of the impact damaged specimens revealed that the nylon/basalt fiber content has a sufficient effect on the type and size of damage. Also, with increasing the nylon/basalt content, the most important failure mode was changed from fiber breakage to local buckling.
2009
Proceedings of the 10th Asian Textile Conference ~ATC-10 ~
M. Tehrani Dehkordi; H. Nosraty ; M. M. Shokrieh; G. Minak
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/78410
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