Lightweight and high-strength composite material vehicle shelter large board

Abstract

The invention provides a lightweighting high-strength composite material vehicle shelter panel, which comprises a sheath, an intermediate foam interlayer, a peripheral bound edge and a structural adhesive. The sheath takes a carbon fiber satin fabric prepreg and a glass fabric prepreg as raw materials, a vacuum baking oven technology is employed for forming, the peripheral bound edge employs a U-shaped structure, the carbon fiber satin fabric prepreg is taken as a raw material, an autoclave technology is employed for forming, and the foam interlayer employs PVC foam. Compared with the prior art, the composite material sheath has small thermal conduction coefficient and zero thermal expansion coefficient, thermal stress between sheath and the epoxy structural adhesive is little, so that the sheath and the structural adhesive are difficulty to degum, and the degumming phenomenon due to thermal deformation under high temperature can be solved. sheath, foam and bound edge employ one shot forming, the surface is smooth and flat, the assembling part is less, assembling cost and assembling time are greatly reduced, daily maintenance is easy, the weight is light, bearing is large, and the impact intensity is high.

Description

technical field [0001] The invention relates to a light-weight and high-strength composite material vehicle-mounted shelter large plate. Background technique [0002] In the prior art, military shelters can be divided into two types in terms of structure: skeleton type shelters and large plate type shelters. Although the skeleton type shelters have good integrity and high strength, they are self-heavy and have a large heat transfer coefficient. The large-slab shelter has a small heat transfer coefficient, good sealing performance, and a flat and beautiful appearance. However, at present, there are mainly large slabs with aluminum plates and steel plates as the panels and aluminum profiles as the skeleton. When this shelter is used in the field, the load condition It is complex and prone to panel degumming, and when the temperature changes drastically, the outer skin such as aluminum plate and steel plate will generate a lot of thermal stress with the inner test. One of the m...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a light-weight high-strength composite material vehicle-mounted shelter panel to solve the problems of the existing shelter panel due to its heavy weight, complex load conditions, easy panel degumming, and severe temperature changes, such as aluminum plates, steel plates, etc. The outer skin and the internal test will generate a lot of thermal stress, which will lead to the problem of debonding of the large board of the shelter

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