Abstract: The sandwich structure is a type of structure widely used in many fields, especially in modern engineering and industry, due to its lightweight yet high stiffness and durability. The study of the mechanical behavior of sandwich structures has attracted the attention of many researchers. However, the heterogeneous and complex characteristics of the core make it difficult and costly to construct simulation models and perform direct simulations. This study proposes the use of an equivalent homogeneous model to replace the 3D sandwich panel structure with a 2D panel with comparable mechanical properties, thereby constructing a simpler finite element model that still accurately reflects the dynamic response.........
Key Word: Sandwich structures; Equivalent model; Finite element; Vibration; Numerical simulation.
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