High polymer material damage in-situ test device and method based on ultrasonic waves

A polymer material, in-situ testing technology, applied in the direction of material analysis, measurement device, analysis material, etc. using sonic/ultrasonic/infrasonic waves, it can solve the problem of difficulty in ensuring the accuracy of test results, increasing test difficulty and instability, The test results have a great impact on problems such as increasing the difficulty and instability of the test, improving the test efficiency, and saving the test time.
CN111208014APending Publication Date: 2020-05-29CHINA UNIV OF PETROLEUM (EAST CHINA)
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (EAST CHINA)
Publication Date
2020-05-29

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Abstract

The invention relates to a high polymer material damage in-situ test device and method based on ultrasonic waves. The device comprises a mobile adjusting device, an ultrasonic transmitting probe and an ultrasonic receiving probe, wherein the moving adjusting device comprises an in-situ stretching base, a sliding rail sliding block and a sliding device, the sliding rail sliding block slides relative to the in-situ stretching base through the sliding device, the top of the in-situ stretching base and the top of the sliding rail sliding block are each provided with a clamp, the ultrasonic transmitting probe and the ultrasonic receiving probe are located above the moving adjusting device and located at the bottom of a first vertical rod and the bottom of a second vertical rod respectively, anda distance between two vertical rods is adjustable. The device is advantaged in that a damage value is calculated through the wave velocity of the ultrasonic waves, the defect that a traditional damage testing method can only measure damage variables after material deformation is overcome, and the internal damage condition of the material can be reflected more truly.
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Description

technical field

[0001] The invention belongs to the technical fields of polymer testing, experimental mechanics and ultrasonic non-destructive testing, and in particular relates to an in-situ testing device and method for polymer material damage based on ultrasonic waves. Background technique

[0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art.

[0003] Damage mechanics characterizes damage through damage variables, and describes the damage evolution process of materials with damage evolution equations. Although damage mechanics has been developed for more than half a century, it is still in the stage of development and perfection. The understanding of the damage mechanism is still relatively insufficient,...

Claims

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