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Curing procedure oriented method for monitoring interfacial force between composite materials and molds

A composite material and interfacial force technology, applied in the direction of analyzing materials, measuring devices, instruments, etc., can solve problems such as low precision and complicated measurement process, and achieve the effect of repeated monitoring

Active Publication Date: 2016-07-13
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0008] The purpose of the present invention is to invent a method for monitoring the interface force between the composite material and the mold for the curing process in view of the problems of low precision or complicated measurement process in the existing composite material and mold interface force measurement

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  • Curing procedure oriented method for monitoring interfacial force between composite materials and molds
  • Curing procedure oriented method for monitoring interfacial force between composite materials and molds
  • Curing procedure oriented method for monitoring interfacial force between composite materials and molds

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] Such as Figure 1-2 shown.

[0030] A method for monitoring the interface force between a composite material and a mold oriented to a curing process, comprising the following steps:

[0031] First, a plurality of grooves that can be continuously or discontinuously distributed in any direction are arranged on the surface of the mold in contact with the composite material. The groove direction is preferably distributed along the length and width of the mold; The height of the section is 0.05mm-0.25mm larger; the groove can adopt a rectangular parallelepiped or cylindrical structure;

[0032] Secondly, put the strain sensor into the groove, and seal the surface of the groove at the same time, so that the measurement area of ​​the sensor has no contact with the walls around the groove, and the two ends of the measurement area are fixed in the groov...

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Abstract

The invention provides a method for monitoring interaction force between composite materials and molds in curing procedures.The method includes forming a plurality of grooves in composite material contact surfaces of the molds, embedding strain sensors in the grooves and fixing two ends of a measurement region of each sensor to the corresponding mold; converting strain signals measured by the sensors into values of stress between the composite materials and the molds so as to monitor the interaction force between the composite materials and the molds in the curing procedures.The method has the advantages that the interaction force between the composite materials and the molds can be effectively monitored in the curing procedures, and technical support can be provided for predicting and controlling curing deformation of the composite materials.

Description

technical field [0001] The invention relates to a composite material curing molding technology, in particular to a composite material and mold interaction force monitoring technology during the curing process, in particular to a curing process-oriented composite material and mold interface force monitoring method. Background technique [0002] At present, as a new type of material, composite materials retain the main advantages of the constituent materials, overcome or reduce the shortcomings of the constituent materials, and can also produce some excellent properties that the constituent materials do not have. Therefore, they are widely used in the industrial and living fields. However, due to the difficulty in matching the thermal expansion coefficients of the composite material and the mold, interfacial forces are generated between the composite material and the mold during the curing process. The interface force causes warping and springback of the composite material, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/04B29C35/02
CPCB29C35/02G01N19/04
Inventor 李迎光李楠垭
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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