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Variable-stiffness hybrid continuous fiber reinforced composite material based on 3D printing and preparation method

A technology for reinforcing composite materials and continuous fibers, which is applied in the directions of additive processing, 3D object support structures, manufacturing tools, etc., can solve the problems of complex preparation process, restricting the application and development of hybrid continuous fiber reinforced composite materials, and precise control, etc. To achieve the effect of simple process, rapid integrated preparation and precise control

Pending Publication Date: 2022-02-11
陕西斐帛科技发展有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process of traditional continuous fiber-reinforced composite materials is complex, and it is difficult to accurately control the position and shape of two or more continuous fibers and matrix materials in the component, which limits the application and development of hybrid continuous fiber-reinforced composite materials.

Method used

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  • Variable-stiffness hybrid continuous fiber reinforced composite material based on 3D printing and preparation method
  • Variable-stiffness hybrid continuous fiber reinforced composite material based on 3D printing and preparation method
  • Variable-stiffness hybrid continuous fiber reinforced composite material based on 3D printing and preparation method

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preparation example Construction

[0042] See image 3 , A method for preparing a mixed mixed continuous fiber reinforced composite material based on 3D printing, comprising the steps of:

[0043]1) According to the size characteristics of the conflict mixed continuous fiber reinforced composite, the three-dimensional model of the variable mixed continuous fiber reinforced composite material is established by computer assistance design (CAD) software.

[0044] 2) Import the three-dimensional model of the changing rigid mixed continuous fiber reinforced composite to finite element analysis software, apply a practical working capacity load, acquire load distribution data in a mixed concurrent mixed continuous fiber reinforced composite, depending on the load distribution data, Subregional segmentation treatment of rigid mixed continuous fiber reinforced composites;

[0045] 3) Select continuous fibers and matrix materials to subregions according to the load distribution data and performance requirements of the sub-reg...

Embodiment 1

[0057] A 3D printing mixed continuous fiber reinforced composite, a 3D printing method, see image 3 It mainly includes the following steps:

[0058] 1) According to the size characteristics of the conflict mixed continuous fiber reinforced composites, three-dimensional models of variable mixed continuous fiber reinforced composites are established by SolidWorks;

[0059] 2) Import the three-dimensional model of the change-rigid mixed continuous fiber reinforced composite, apply a practical working capacity load, obtain the load distribution data in the moxic mixed continuous fiber reinforced composite material, according to the load distribution data, a mixed rigidity mixed continuous fiber Enhanced composites for sub-regional segmentation, sub-regional partition Figure 4 ;

[0060] 3) According to the load distribution data and performance requirements of the sub-region, continuous fibers and matrix materials are selected for the child area, wherein the sub-region 1, the sub-regi...

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Abstract

The invention discloses a variable-stiffness hybrid continuous fiber reinforced composite material based on 3D printing and a preparation method thereof, and the design of the variable-stiffness hybrid continuous fiber reinforced composite material is realized by changing the fiber type, the matrix material type, the fiber content and the fiber direction. Compared with an existing hybrid continuous fiber composite material design, application conditions, economic requirements and load distribution of components can be matched through the design of material types and fiber distribution, and the performance advantages of fibers and a base material are brought into full play. Meanwhile, according to the preparation method provided by the invention, the position distribution of various continuous fibers and matrix materials in the component can be accurately regulated and controlled, the performance of the component can be controlled point by point, a mold is not needed, the process is simple, and the high-performance and low-cost preparation of the complex variable-stiffness hybrid continuous fiber reinforced composite material is realized.

Description

Technical field [0001] The present invention belongs to the technical field of continuous fiber reinforced composites, and in particular, a 3D-printing-based mixed continuous fiber reinforced composite material is related to the preparation method thereof. Background technique [0002] Continuous fiber reinforced composites have the advantages of high strength, high specific modulus, strong design and multi-function, have a wide range of application prospects in major construction projects such as aerospace, rail transit. Hybrid continuous fiber reinforcing composites utilize two or more continuous fibers and matrix materials, can improve the performance of a single continuous fiber reinforced composite material, such as mixing with carbon fibers and carbon fibers, improve continuous carbon fiber Restriction of poor impact resistance of composites. However, conventional continuous fiber reinforced composites have complex, difficult to achieve two or more continuous fibers, and th...

Claims

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Application Information

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IPC IPC(8): C08J5/04B29C64/386B29C64/118B33Y70/10
CPCC08J5/042C08J5/046C08J5/043C08J5/041C08J5/045B29C64/118B29C64/386B33Y70/10
Inventor 侯章浩刘鹏于慧莉刘腾飞贺金李宇航兰红波
Owner 陕西斐帛科技发展有限公司
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