Sample preparation method for testing tensile strength of carbon fiber plate
A carbon fiber board, tensile strength technology, used in the preparation of test samples, strength characteristics, and the use of stable tension/pressure to test the strength of materials, etc. It can give full play to the problems of carbon fiber board tensile strength, inability to obtain accurate test data, etc., to achieve a wide range of practical application value, stable adhesive effect, and excellent effect.
Inactive Publication Date: 2020-10-02
CARBON TECH CO LTD
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Problems solved by technology
[0004] There are still some problems in the existing sample preparation technology: the standard (GB / T 3354-2014) stipulates that the size of the carbon plate sample is length×width×thickness: 230~250mm×12.5mm×1mm, and the length of the reinforcing sheet 50mm
However, due to the limited anchoring area (12.5mm×50mm) and the shear force that the cured adhesive can withstand, it is difficult to withstand the large load of the sample in the tensile test, which will cause the reinforcement sheet to fall off, clamping damage or longitudinal splitting. Cracks and other abnormal failure forms appear, and the maximum tensile strength of the carbon fiber plate cannot be exerted, resulting in the inability to obtain accurate test data
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[0027] 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 related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.
[0028] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0029] Please refer to Figure 1 to Figure 4 , the embodiment of the present invention provides a kind of sample preparation method that is used for carbon fiber board tensile strength test, comprises the following steps:
[0030] S11 material preparation, cutting the strip-shaped carbon fiber pla...
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Abstract
The invention discloses a sample preparation method for testing the tensile strength of a carbon fiber plate. The sample preparation method comprises the following steps: preparing materials; mountinga reinforcing sheet; removing redundant adhesive; curing the adhesive; carrying out support cutting. The sample preparation method disclosed by the invention can be used for obtaining accurate tensile property detection data for a large-thickness carbon fiber plate, and has a wider practical application value.
Description
technical field [0001] The invention relates to the technical field of mechanical performance testing of composite materials, in particular to a sample preparation method for testing the tensile strength of carbon fiber plates. Background technique [0002] Carbon fiber plates have high specific strength and excellent corrosion resistance, and are widely used in the field of building structure reinforcement. In order to ensure that buildings reinforced with carbon fiber panels have higher ultimate loads and shear stresses, it is necessary to test the mechanical properties of carbon fiber panels used for structural reinforcement. Based on GB / T 3354-2014, the tensile strength of carbon fiber plates can be detected, which is one of the important evaluation parameters for judging the mechanical properties of carbon fiber plates. [0003] In the existing tensile performance test of carbon fiber plates, according to the provisions of GB / T 3354-2014, the carbon fiber plates are cu...
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IPC IPC(8): G01N1/28G01N3/08
CPCG01N1/28G01N1/286G01N3/08G01N2001/2873G01N2203/0017G01N2203/0282G01N2203/0298
Inventor 罗仕刚
Owner CARBON TECH CO LTD