Light sandwich compound material using hollow circular tube backbone

Abstract

The present invention provides light sandwich composite materials using a hollow and circular tube frame and relates to sandwich composite materials, which solve the problems of small opening rate of a sandwich layer of the present plate, for example, without formation of a communicated integrity and with a single function of aluminum honeycomb sandwich composite materials with higher integral opening area but being parted off, low designing capacity and flexibility of the composite materials, and no changeable formation of the composite materials based on the using environment of the composite materials because of the integrated formation of a core part. The present invention comprises a plurality of hollow and circular tube frames (3) arranged between an upper panel (1) and a lower panel (2). Upper end planes of the hollow and circular tube frame (3) is connected with the lower end surface of the upper panel (1). Lower end planes of the hollow and circular tube frame (3) is connected with the upper surface of the lower panel (2). The present invention has the advantages that: the present invention has multifunction that electronic components can be positioned on the composite materials, achieving the integration of the structure and functions and saving space. The composite materials have favorable selectivity of the design.

Description

technical field [0001] The present invention relates to sandwich composite materials. Background technique [0002] In order to reduce the weight of the aircraft and at the same time ensure that the strength and stiffness of the structure meet the requirements, the sandwich structure has been used more and more in the aerospace field. Because this structure has the characteristics of high specific stiffness and high specific strength, it has been widely valued by researchers. In recent years, light metal foam sandwich panels and honeycomb sandwich panel structures have been used in the aerospace field. In addition, modern aerospace vehicle components should also provide other functions such as heat dissipation, electronic shielding, or impact energy absorption while carrying weight. In the traditional structural design, some materials are used to meet the mechanical performance requirements such as strength and stiffness of the structure, and the other part of the material...

AI Technical Summary

Problems solved by technology

These composite panels have been applied in engineering practice to a certain extent, but there are also some inherent defects: first, the opening rate in the sandwich layer is small, such as the aluminum honeycomb sandwich composite material, which has a relatively large opening area overall, but is Separated, without forming a connected whole, can not achieve a certain degree of versatility, such as adding batteries or motors to the composite material; second, the composite material has little designability and low flexibility

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