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Dot matrix sandwich board based on stacked composite materials and preparation method thereof

A technology of composite materials and fiber composite materials, which is applied in the field of lattice sandwich panels and their preparation, can solve the problems of complex structure, complex preparation process, and limited range of material selection for engineering applications, so as to improve the range of material selection, expand the range of material selection, The effect of enriching the structural form

Inactive Publication Date: 2014-05-21
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem that the existing lattice sandwich structure has a relatively complex structure, which leads to complicated preparation processes and limits the range of material selection for engineering applications, and further provides a composite lattice sandwich based on stacking Plate and method for its preparation

Method used

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  • Dot matrix sandwich board based on stacked composite materials and preparation method thereof
  • Dot matrix sandwich board based on stacked composite materials and preparation method thereof
  • Dot matrix sandwich board based on stacked composite materials and preparation method thereof

Examples

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specific Embodiment approach 1

[0014] Specific implementation mode one: as Figure 1~5 As shown, a kind of composite material lattice sandwich panel based on stacking in this embodiment is composed of an upper panel 1, a lower panel 2 and a lattice core 3, and the lattice core 3 is fixed on the upper panel arranged in parallel. Between the panel 1 and the lower panel 2, the lattice core 3 is formed by stacking several fiber composite material columns 3-1 layer by layer, and the fiber composite material columns in each layer are parallel to each other; the fibers between layers The composite columns are fixed by means of glue joints.

[0015] The laying angle of each layer structure can be designed arbitrarily. The lattice core is made of several fiber columns stacked layer by layer in a specific way, and the fiber columns in a layer are parallel to each other; different layers are stacked layer by layer according to a pre-designed inclination angle, and the interlayer The rods are fixed by gluing, the upp...

specific Embodiment approach 2

[0016] Specific implementation mode two: as Figure 1~5 As shown, in this embodiment, the fiber composite columns between every two adjacent layers are arranged in a criss-cross pattern. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0017] Specific implementation mode three: as Figure 1~5 As shown, in this embodiment, different column layers of fiber composite materials are stacked layer by layer according to an inclination angle of -80° to +80°. Other components and connections are the same as those in the first embodiment.

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Abstract

The invention relates to a dot matrix sandwich board based on stacked composite materials and a preparation method thereof, relating to a dot matrix sandwich board and a preparation method thereof. The problems of complex preparation process and limited engineering application selection scope resulted from the complex structure form of the current dot matrix sandwich structure are solved. The dot matrix sandwich board is characterized in that a dot matrix core is formed by stacking a plurality of fibre composite material columns layer by layer; the fibre composite material columns in each layer are parallel to each other; the fibre composite material columns among layers are fixed in a cementing manner; the fibre composite material columns are cut into required lengths and sizes; each fibre composite material column is paved in parallel along a locating device according to a specific angle, so that a first layer is formed; each fibre composite material column in a second layer is paved; the nth layer of fibre composite material columns is paved till required layer number of fibre composite material columns is paved, so that the dot matrix core is formed; the formed dot matrix core is cemented together with an upper panel and a lower panel, so that the dot matrix sandwich board based on the stacked composite materials is formed; and the structural form and the preparation process are simple.

Description

technical field [0001] The invention relates to a lattice sandwich panel and a preparation method thereof. Background technique [0002] Due to its efficient structural form, the lattice sandwich structure has developed into a structure with mechanical properties comparable to traditional honeycomb in recent years. At present, due to the difference of the structure matrix material, it generally includes metal lattice structure and composite material lattice structure. Due to the higher specific stiffness and specific strength of composite materials than metals, the lattice structure of composite materials has increasingly shown its broader application prospects in aerospace, transportation, energy and other fields. However, due to the complex preparation process of the composite material structure, the lattice structure of the composite material is mainly pyramidal and tetrahedral, and the structure is relatively complex. Contents of the invention [0003] The present in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B3/10B32B5/26
Inventor 吴林志殷莎彭亮
Owner HARBIN INST OF TECH
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