A sandwich panel is a composite material consisting of three layers: a lightweight core sandwiched between two thin, rigid face sheets. The core, often made of materials like foam, honeycomb, or balsa wood, provides insulation and structural stability while keeping the panel lightweight. The face sheets, typically constructed from metal, fiberglass, or composite materials, offer strength and durability. Sandwich panels are widely used in construction, aerospace, and transportation industries due to their high strength-to-weight ratio, thermal and acoustic insulation properties, and ease of installation. Common applications include wall cladding, roofing, aircraft components, and refrigerated truck bodies, making them a versatile and efficient building solution.