alexa Mechanical Behavior of Long Carbon Fiber Reinforced Pol
ISSN: 2169-0022

Journal of Material Sciences & Engineering
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Research Article

Mechanical Behavior of Long Carbon Fiber Reinforced Polyarylamide at Elevated Temperature

Wang Q1, Ning H1*, Vaidya U2 and Pillay S1

1Department of Materials Science and Engineering, University of Alabama at Birmingham, Birmingham, USA

2Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee, Knoxville, USA

*Corresponding Author:
Ning H
Department of Materials Science and Engineering
University of Alabama at Birmingham
Birmingham, USA
Tel: 2059967390
E-mail: [email protected]

Received Date: October 24, 2016; Accepted Date: November 04, 2016; Published Date: November 14, 2016

Citation: Wang Q, Ning H, Vaidya U, Pillay S (2016) Mechanical Behavior of Long Carbon Fiber Reinforced Polyarylamide at Elevated Temperature. J Material Sci Eng 5: 294. doi: 10.4172/2169-0022.1000294

Copyright: © 2016 Wang Q, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Long fiber reinforced thermoplastic (LFT) composites have recently found increasing use in transportation, military and aerospace applications and become well established as high volume and low cost materials with high specific modulus and strength, superior damage tolerance, and excellent fracture toughness. This study is conducted to evaluate the performance of long fiber reinforced thermoplastic composite at elevated high temperature. Long carbon fiber reinforced polyarylamide (CF/PAA) composites containing 20 wt% and 30 wt% carbon fibers are used and processed using extrusion compression molding. Flexural and tensile samples are tested at three temperatures, room temperature, medium temperature (MD 65°C) and glass transition temperature (TG 80°C). Samples in both longitudinal and transverse directions are prepared to show the effect of the orientation on mechanical properties at different temperatures. The testing results show that as temperature increases, both of the flexural and tensile properties of the CF/PAA decrease as expected. Both of the flexural and tensile modulus reduce more dramatically than the flexural and tensile strength, indicating that the temperature has more pronounced effect on modulus than strength. The transversely oriented samples generally show larger reduction in properties than the longitudinally oriented samples. Temperature significantly affects flexural strength at the elevated temperature section between MD and TG temperature.


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