Lightweight and High-Strength Sandwich Panels: Materials, Core Architectures, Manufacturing, Mechanical Performance, Multifunctionality and Future Perspectives.

This project presents a complete method for testing lightweight, high‑strength sandwich panels. It examines how the core design, the way the panels are made, and their mechanical performance are connected. The panels have carbon‑fiber‑reinforced polymer (CFRP) face sheets and use advanced core shapes such as honeycombs, lattices, and auxetic structures. They are studied under different loads: bending, compression, and impact. Finite‑element analysis (FEA) is used to predict how the panels deform, where stresses concentrate, and how they fail under those loads. The study also looks closely at manufacturing limits and adds multifunctional features like thermal insulation and energy absorption. A systematic simulation framework is built to help choose core geometries

that give the highest specific stiffness and strength while keeping weight low. The work provides clear guidance for picking material‑core combinations suited to aerospace, automotive, and marine uses, tackles current design problems, and points to future directions in composite sandwich technology.

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