The Second International Seminar on Materials and Engineering Structures (ISMES 2025) serves as a pivotal platform for researchers and industrialists to engage in insightful exchanges and debates on the latest innovations in composite materials. The seminar not only fosters collaboration but also encourages the formation of working and expert groups tailored to specific areas of interest, aiming to address future challenges in the field of materials science. The submitted papers may cover one or more of the topics listed below and can extend to emerging areas, ensuring a broad dissemination of knowledge and advancements in composite materials across various disciplines.A