This project focuses on the design and analysis of a piston utilizing composite materials, particularly AA7275, to enhance structural integrity and thermal efficiency. The study employs ANSYS software to conduct comprehensive structural and thermal analyses. The structural analysis evaluates the mechanical behavior, stress distribution, and deformation characteristics of the piston under varying operating conditions. Meanwhile, the thermal analysis investigates the heat transfer mechanisms, temperature distribution, and thermal stress accumulation within the piston. By integrating composite materials and utilizing advanced simulation techniques, this project aims to optimize the performance and reliability of the piston, contributing to advancements in engine technology. ANSYS software facilitates Multiphysics simulations, allowing engineers to study the interactions between different physical phenomena such as structural mechanics, fluid dynamics, electromagnetics, and thermal effects. Its robust solvers and algorithms enable accurate prediction of system behavior under various operating conditions, helping engineers optimize performance, reliability, and efficiency. Moreover, ANSYS provides a range of specialized modules tailored to specific industries and applications, including automotive, aerospace, electronics, healthcare, and renewable energy. These modules incorporate domain-specific features and workflows, empowering engineers to address industry-specific challenges and design requirements effectively. Recent advancements in ANSYS software include enhanced computational capabilities, improved user interfaces, and integration with emerging technologies such as artificial intelligence and additive manufacturing. These developments enable engineers to accelerate the design iteration process, reduce time-to-market, and achieve superior product performance. Furthermore, ANSYS supports collaborative engineering workflows through its integration with product lifecycle management (PLM) and computer-aided design (CAD) software. This integration facilitates seamless data exchange between design, simulation, and manufacturing teams, ensuring consistency and accuracy throughout the product development lifecycle. KEY WORDS : AA7275; Piston; Structural integrity and Thermal Efficiency; Structural analysis; ANSYS; CAD.