A comparative analysis of advanced composite materials for lightweight and high-strength structural applications

Year 2026, Volume: 2 Issue: 1, 1 - 11, 20.02.2026

Cordelia Omoyi , Dıckson Davıd Olodu

https://izlik.org/JA76XJ45RB

Abstract

The demand for lightweight and high-strength materials in structural applications has driven the exploration of advanced composite materials. This study investigates and compares Carbon Fiber Reinforced Polymer (CFRP), Glass Fiber Reinforced Polymer (GFRP), Kevlar Fiber Reinforced Polymer (KFRP), and Natural Fiber Composites (NFC) for their mechanical, thermal, environmental, and economic properties. The objective is to evaluate the suitability of these materials for critical structural applications across industries such as aerospace, automotive, construction, and sports. Material properties including tensile strength, elastic modulus, fatigue life, impact toughness, and strength-to-weight ratio were analyzed. The comparative analytical results compiled from validated engineering databases revealed that KFRP exhibits the highest tensile strength (3000 MPa) and fatigue strength (1500 MPa), with a superior strength-to-weight ratio (2142 MPa/g/cm³), making it ideal for extreme load-bearing environments. CFRP also performs well, combining moderate cost efficiency with high stiffness (Elastic Modulus: 150 GPa) and fatigue life of 1,000,000 cycles. In contrast, GFRP offers cost advantages but suffers from lower mechanical performance, while NFC stands out for sustainability (10/10) and lowest lifecycle cost, albeit with significantly reduced structural performance. Thermal analysis showed CFRP has the highest thermal conductivity (5.0 W/mK) and withstands up to 200°C, while NFC is limited to 100°C with high moisture absorption (5%). Manufacturing-wise, NFC excels in sustainability and recyclability, whereas CFRP and KFRP incur higher production costs ($89.60/kg and $63.06/kg respectively.
In conclusion, KFRP is optimal for high-strength applications due to its superior mechanical performance, while NFC is ideal for eco-friendly designs. The comprehensive comparison facilitates material selection for engineers aiming to balance performance, cost, and sustainability in modern structural applications.

Keywords

advanced composites , cost efficiency , environmental sustainability , mechanical properties , structural applications , thermal conductivity

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