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Anti-tensile and anti-flexing performance test system for flexible electronics

A testing system, anti-deflection technology, applied in the direction of testing material strength by applying stable bending force, testing material strength by applying stable tension/compression, measuring devices, etc. Ambient temperature can not be adjusted and other problems, to achieve the effect of a wide range of system adaptation, improve efficiency and accuracy, and overcome limitations

Active Publication Date: 2017-05-17
HUAZHONG UNIV OF SCI & TECH +1
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Problems solved by technology

However, further studies have shown that although the device can complete the measurement of fixed-point deflection resistance and relaxation creep performance of flexible electronics under constant load and constant elongation, it can only perform simple C-type tests, but cannot meet the requirements of S-type tests. The flexural performance test of complex curved surfaces such as type and G type, and the test environment temperature is not adjustable

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  • Anti-tensile and anti-flexing performance test system for flexible electronics

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Embodiment Construction

[0036] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0037] figure 1 is an overall composition block diagram of the test system constructed according to the preferred embodiment of the present invention, figure 2 , image 3 An isometric view and a top view, respectively, showing in more detail a plurality of test modules according to the invention. Such as Figure 1 to Figure 3 As mentioned above, the test system 1 mainly includes functional ...

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Abstract

The invention belongs to the field of correlation techniques of flexible electronics and discloses an anti-tensile and anti-flexing performance test system for flexible electronics. The system comprises a control module, a data acquisition module and a testing module, wherein the testing module comprises two fixed mandrel units and two bent mandrel units in a sealing manner, and each fixed mandrel unit has fixing and stretching functions on the flexible electronics, has the freedom degree in the X direction and can be provided with a tension sensor; each bent mandrel unit can realize radius bending of a given mandrel, has freedom degrees in X and Y directions and can be provided with a pressure sensor and a CCD camera. Through combination of the four mandrel units, tests of constant tension, bending pressure, testing temperatures as well as flexing resistance of complicated curved surfaces such as C type, S type, G type and the like with adjustable bending radii, bending speeds and bending angles can be realized, anti-tensile performance test can be realized, and the defects that an existing device can only perform simple C type test and test data are not accurate due to non-quantitative test conditions are effectively overcome.

Description

technical field [0001] The invention belongs to the technical field related to flexible electronic testing, and more specifically relates to a flexible electronic tensile and flexural resistance testing system. Background technique [0002] Fatigue is a form of failure in which flexible electronic materials undergo sudden fracture under alternating stress below its flexural strength limit, which is fundamentally different from static failure. Relevant studies have shown that about 50%-90% of Part failure and fatigue crack generation and development are inseparable. Flexible electronics, typically represented by flexible printed circuit boards, have been widely used in many fields due to their dynamic bending, twisting, and folding characteristics. The probability and time of alternating stress and strain action are much greater than the probability and time of constant load action, so the main failure mode in its use is flexural fatigue failure or flexural fatigue damage. C...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G01N3/20
CPCG01N3/08G01N3/20G01N2203/0017G01N2203/0073
Inventor 徐洲龙陈建魁谭万洲丁汉尹周平
Owner HUAZHONG UNIV OF SCI & TECH
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