Effect of Different Nanopowder and Lap Lengths on the Mechanical Strength of Single-Action Adhesive Joints
Project no. 32675 · Status: Kapanmış · 2024
Summary
<p>Fiber-reinforced polymer composites are widely used in the aerospace, automotive, and construction sectors due to their excellent performance, stability, and environmental friendliness. Appropriate connection methods for next-generation aircraft components play a crucial role in the design and production of key components. Mechanical connections can severely damage and weaken the composite, adding additional weight to the structure and causing harmful stress concentrations around the joint area caused by holes. Adhesive bonding offers advantages such as small weight gain, low cost, and uniform stress distribution, making it an alternative method for joining composite materials.</p><p><br></p><p>This project aims to reduce the damage that occurs in single-lap joints, thus increasing joint strength. To this end, the addition of various nanopowders will strengthen the epoxy bonding area and increase its damage resistance. Three different nanopowders, including silicon carbide (SiC), nanoclay (NC), and boron nitride (h-BN), will be added to the epoxy adhesive in the adhesive bonding area of the glass fiber/epoxy composite. During the composite material production process, the weight percentage of silicon carbide (SiC), nanoclay, and boron nitride (h-BN) nanopowder will be maintained at 2%. Additionally, a failure analysis of a reinforced composite adhesive bond with three different overlap lengths will be performed. This study will examine the effects of bonding zone reinforcement nanopowder and overlap length on damage resistance for single-action adhesive bonds.</p>