Evaluation of Mechanical Performance of CFRP-CFRP Single-Lap Adhesive Joints by Experimental and FEA Approach

This work examines the mechanical properties of carbon fiber reinforced polymer (CFRP) single-lap adhesive joints utilizing both experimental methods and Finite Element Analysis (FEA) with ANSYS APDL. Our research focuses on the impact of adhesive thickness and overlap length on joint performance in aerospace applications, specifically in terms of tensile strength and failure load. The findings indicate that the most effective joint design is obtained when there is a 30 mm overlap length and an adhesive thickness of 0.4 mm. An upward trend in tensile strength is noticed as the overlap length increases, but a non-linear correlation is observed between adhesive thickness and failure load. Our Finite Element Analysis (FEA) simulations closely match the actual data, indicating a high level of prediction accuracy for our computer models. The research highlights the importance of joint arrangement in attaining excellent mechanical characteristics for CFRP structures. It emphasizes the need for a careful balance between adhesive thickness and overlap length to guarantee structural integrity. The results of our research enhance the progress of joint design in aircraft constructions that are lightweight and have great strength. In this field, ensuring dependability is of utmost importance.