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An experimental device and experimental method for testing the bonding performance between prepreg layers

A technology of bonding performance and experimental device, which is applied in the direction of measuring device, using mechanical device, analyzing materials, etc., can solve the problems of inability to accurately characterize the bonding performance between prepreg layers, and the testing process cannot fully simulate the automatic laying process. , to achieve the effect of simple structure, low cost and low input cost

Active Publication Date: 2019-05-07
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0004] At present, both at home and abroad have explored the testing devices and experimental methods for the bonding performance of prepregs, but because the testing process cannot completely simulate the automatic laying process, it cannot accurately characterize the interlayer bonding of prepregs during the automatic laying process. performance

Method used

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  • An experimental device and experimental method for testing the bonding performance between prepreg layers
  • An experimental device and experimental method for testing the bonding performance between prepreg layers
  • An experimental device and experimental method for testing the bonding performance between prepreg layers

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Embodiment Construction

[0029] In order to enable those skilled in the art to better understand the technical solutions in this application, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the drawings in the embodiments of this application. Obviously, the described The implementation manners are only a part of the implementation manners of the present application, rather than all the implementation manners. Based on the implementation in this application, all other implementations obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of this application.

[0030] figure 1 It is a schematic structural diagram of an experimental device for testing the bonding performance between prepreg layers provided by an embodiment of the present invention. figure 2 It is a schematic diagram of the structure of the speed control part of the experimental device in the present inv...

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Abstract

The invention provides an experimental device and experimental method for testing the interlayer bonding performance of a prepreg.The experimental device comprises a body mechanism, a guide mechanism and a stripping mechanism, wherein the body mechanism comprises a base, a control cabinet, a speed control part and a pressure control part, the guide mechanism comprises an upper guide plate, a lower guide plate and a mounting support, the stripping mechanism comprises a tensile testing machine, an upper chuck and a lower chuck, and the upper chuck and the lower chuck are located in the middle hollow-out region of the tensile testing machine.The experimental device and the experimental method for testing the interlayer bonding performance of the prepreg can conform to the actual situations of automatic laying projects of large composite material members and provide a reliable basis for selection of process parameters in the automatic laying process.

Description

Technical field [0001] This application relates to the technical field of automatic placement of conforming materials, and particularly relates to an experimental device and an experimental method for testing the bonding performance between prepreg layers. Background technique [0002] Automatic placement technology is a low-cost composite material molding technology, including Automatic Tape Laying (ATL) and Automatic Fiber Placement (AFP), which integrate materials, structural design and manufacturing. It is highly integrated with CNC machine tool technology, material process technology and CAD / CAM software technology to realize the processing capabilities of automatic placement, compaction, shearing and re-feeding of prepreg, which is especially suitable for the production of large composite material structures. In automatic placement technology, the selection of material system and placement process control are important issues that need to be resolved urgently. [0003] Prepr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N19/04
CPCG01N19/04
Inventor 肖军周煦洁李勇还大军
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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