The design concept of Aluminum honeycomb composite panel is similar to that of I-beam. The main structure of the two outer surface plates is large, so it has a large cross section and short inertia. Characteristics, first applied to the aviation and character navigation departments. Therefore, the request for the aluminum honeycomb panel is particularly high. When designing, it is necessary to consider various factors to prevent the following situations from appearing, as follows:
Overall instability: The bending stiffness of the sandwich structure is insufficient. Panel instability (wrinkling) between honeycomb holes: The panel is too thin. The honeycomb hole is too large. This phenomenon may cause damage when the honeycomb holes of the panel are spread. As a result, the panel is wrinkled. Panel cracking: the thickness of the entire panel is not enough, the thickness of the panel is not sufficient, and the strength of the panel is not sufficient.
1. Core shear wrinkle: The core shear modulus is too small, and the adhesive shear strength is too low, resulting in final destruction after flexing.
2. Core deflection and collapse: The core plane contraction strength is not enough.
3. Core part pressure loss: The core tightening strength is too small.
4. Core shear damage: the core shear strength is not enough. The entire panel is not thick enough.
5. The panel is separated from the core: the strength of the panel and the core is not enough. In order to conform to the later operating environment, it is necessary to consider the above problems at the time of design to prevent the above 8 kinds of undesirable phenomena from appearing.
