Evaluation of adhesive strength between glass fiber-epoxy composite and aluminium alloy under opening crack mode loading condition

• Main Author: PASARIBU (NIM : 13113081), HAFIDZ
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/22324
• Institution: Institut Teknologi Bandung

Adhesive joint technology has potential to replace rivet joint on aeroplane, especially for component made of composite. The fact that the composite should not be applied machining process as reported by Changing Wang, 2016 [1] that machining can cause rashes due to delamination in the composite. To replace a rivet connection into an adhesive joints requires further research because the nature of the adhesive joints can not be explained by theories such as linear elastic fracture mechanic. The development of damage mechanics interface theory using the cohesive zone model is the first step in analyzing the properties of adhesive joints. <br /> <br /> <br /> Furthermore, the use of finite element method software such as Abaqus can be done to reduce costs and time consumption. The purpose of this study was to evaluate the strength of adhesive joints between composites and aluminum alloys in the opening crack mode. we used double cantilever beam testing on five adherend combinations between composite(woven 0°/90°)- composite(woven 0°/90°), composite(woven -45°/45°) – composite(woven -45°/45°), aluminum - composite(woven 0°/90°), aluminum-composite(woven -45°/45°), and aluminum – aluminum. All tests used adhesive materials commonly used to attach adherend metal. The maximum applied force value was recorded for reference in determining the damage initiation on the finite element method using Abaqus. <br /> <br /> <br /> The results of the test show that the maximum force on adherend aluminum has a higher value than the composite adherend. The test results also show the difference in adherend elasticity shown by the composite(woven 0°/90°) and composite(woven -45°/45°) do not show the difference in maximum applied force values. However, differences in elasticity have an effect on adhesive strength parameters. Adhesive strength will have a lower value on a different adherend compared to the same adherend.