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Aerospace grade fire-retardant fiber composites: Fabrication, characterization, and evaluation
Hazmat, Abdulhammed
Hazmat, Abdulhammed
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Hazmat_2024.pdf
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2024-04-26
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Hazmat, A. 2024. Aerospace grade fire-retardant fiber composites: Fabrication, characterization, and evaluation. -- In Proceedings: 20th Annual Symposium on Graduate Research and Scholarly Projects. Wichita, KS: Wichita State University
Abstract
Fiber-reinforced composites (FRCs) are leading the way in materials innovation, providing strong, lightweight substitutes for structural elements in aerospace and defense applications to meet stringent regulatory requirements. The techniques adopted during composite manufacturing play a critical role in tailoring the properties to ensure compliances with stringent safety standards. The growing interest in further enhancement of fire resistance of FRCs through the incorporation of nanomaterials and fire-retardant additives without compromising the mechanical and thermal properties is driven by safety concerns during the intended applications. In this study, we report on the mechanical and thermal properties of fire-retardant fiber composites fabricated using hand lay-up method. Various characterization methodologies, such as tensile testing, flexural testing, shear testing, thermogravimetric analysis (TGA), water contact angle (WCA), and dynamic mechanical analysis (DMA) were carried out on the prepared composites (carbon, glass, and aramid) to critically evaluate their performance under diverse loading conditions and thermal scenarios. Scanning electron microscope (SEM) was employed to monitor the defects and damage in the composite structures. Test results showed that the carbon fiber composite exhibits superior mechanical properties with tensile, flexural, and shear strengths of 488, 576, and 559 MPa, respectively, and high thermal stability up to around 850°C with a residual mass of 5.93 %. Furthermore, fiber-matrix cracking and delamination were the failure modes observed from fractography analysis. This study paves a new way for advancing the capabilities and applications of fire-retardant fiber composites in the aerospace industry.
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Presented to the 20th Annual Symposium on Graduate Research and Scholarly Projects (GRASP) held at the Rhatigan Student Center, Wichita State University, April 26, 2024.
Research completed in the Department of Mechanical Engineering, College of Engineering.
Research completed in the Department of Mechanical Engineering, College of Engineering.
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Wichita State University
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GRASP
v. 20
v. 20