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Device and method for testing artificial lightning injuries of carbon fiber composite material

A composite material and testing device technology, applied in the direction of material breakdown voltage, testing dielectric strength, etc., can solve problems such as high risk, unusable, and strong specificity, and achieve long service life, improve performance, and promote research. Effect

Active Publication Date: 2015-02-25
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Artificial lightning will generate high voltage or high current, the experiment is highly dangerous and specific, and the traditional test device consisting of fixing and supporting mechanism, conductive circuit, insulation protection mechanism, test instrument, etc. cannot be used

Method used

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  • Device and method for testing artificial lightning injuries of carbon fiber composite material

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Embodiment Construction

[0040] The present invention is described in detail below in conjunction with accompanying drawing:

[0041]The artificial lightning strike damage testing device of carbon fiber composite material of the present invention comprises lightning rod 1 and insulation support 4, is provided with upper insulation protection plate 3 on the top of insulation support 4, is provided with lower insulation protection plate 7 below, and is provided with lower insulation protection plate 7 is provided with a deflector 6, a through hole 11 is provided on the lower insulation protection plate 7, the deflector 6 is grounded, and one end of the lightning rod 1 passes through the upper insulation protection plate 3 and extends into the flow guide plate 6 above. The other end of the lightning rod 1 is connected to an artificial lightning generating device 10, and a current measuring instrument 8 is provided on the connected circuit. The deflector 6 is connected to the sample to be tested and the ...

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Abstract

The invention specifically discloses a device and method for testing artificial lightning injuries of a carbon fiber composite material. The testing device comprises an insulating support and a lightning triggering rod, an upper insulating protective plate and a lower insulating protective plate are arranged above and below the insulating support, a guide plate is grounded and arranged on the lower insulating protective plate which is provided with through holes, and one end of the lightning triggering rod penetrates through the upper insulating protective plate to be extended above the guide plate. The testing device is reliable in structure, safe and convenient to operate and capable of accurately evaluating lightning injury resistance and injury tolerance of the carbon fiber composite material, promoting further studies on the carbon fiber composite material and improving performance of the carbon fiber composite material.

Description

technical field [0001] The invention relates to an experimental device in the field of material testing, in particular to an artificial lightning damage testing device and a testing method for carbon fiber reinforced resin-based composite materials. Background technique [0002] With the continuous development of aviation manufacturing technology, both military aircraft and civil aircraft use a large number of composite materials, especially high-performance carbon fiber composite materials. The amount of composite materials in the "Dreamliner" Boeing 787 is as high as 50%. Compared with traditional metal materials, composite materials have properties such as high specific strength and specific modulus, low density, strong designability, good fatigue resistance and corrosion resistance, and are increasingly used in the aerospace industry. [0003] Lightning is a very destructive natural phenomenon. Generally speaking, an aircraft has an average chance of being struck by lig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/92G01R31/12
Inventor 贾玉玺郭云力
Owner SHANDONG UNIV
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