Loading device and method for four-point bending in high-temperature pipe
A four-point bending and loading device technology, applied in the field of experimental mechanics, can solve problems such as inability to load manually and differences in mechanical properties, and achieve the effect of ensuring high temperature environment and ensuring safety
Active Publication Date: 2017-08-18
DALIAN UNIV OF TECH
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Problems solved by technology
Because the mechanical properties of materials will be different in different environments, in order to study the above mechanical properties of materials in high temperature environments, it is necessary to conduct four-point bending experiments in high temperature environments, but experimenters cannot manually load them in high temperature environments
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[0017] The system of the patent of the present invention will be further described below with reference to the accompanying drawings.
[0018] figure 1 , 2 , 3 shows a four-point bending loading device in a high-temperature tube. In the figure, the four-point bending loading device in a high-temperature tube includes a spiral micrometer 3, a temperature control box 23, a glass tube 18, a clamp mechanism, a push rod type loading mechanism and a four-point bending platform mechanism arranged in the glass tube 18. One end of the glass tube 18 extends into the temperature control box 23, and the other end is provided with a clamp mechanism. The fixture mechanism includes an upper fixture 1, a lower fixture 5, and a fixture end cover 2. The upper fixture 1 and the lower fixture 5 are tightened by bolts on the outside of the glass tube 18 of a heat-insulating ceramic plug 4 and the force sensor fixture 22. On the surface, the end of the force sensor clamp 22 is in contact with th...
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The invention relates to a loading device and method for four-point bending in a high-temperature pipe and belongs to the technical field of experimental mechanics. The loading device comprises a micrometer caliper, a temperature control box, a glass tube, a clamp mechanism, a push rod type loading mechanism and a four-point bending platform mechanism, wherein one end of the glass tube extends into the temperature control box, and the other end of the glass tube is provided with the clamp mechanism; the push rod type loading mechanism comprises a force sensor clamp slide sleeve, a thermal-insulation ceramic slide rod and a load transmitting slide rod, a force sensor and a force sensor rear cover are arranged inside the force sensor clamp slide sleeve, and the load transmitting slide rod is supported by a plurality of slide rod supports; the four-point bending platform mechanism comprises a fixed part and a movable loading part, and the length of two loading square rods is smaller than the distance between two platform circular rods. The loading device has the advantages that the loading of a sample under the high-temperature environment in the glass tube is achieved through the micrometer caliper, the stable high-temperature environment in the glass tube is guaranteed while the safety of experiment operation by experimenters is guaranteed, and the loading load under the high-temperature environment in the glass tube can be accurately read by a force sensor signal monitor.
Description
technical field [0001] The invention relates to a four-point bending loading device in a high-temperature tube and a loading method thereof, belonging to the technical field of experimental mechanics. Background technique [0002] As a commonly used experimental method, the four-point bending test is widely used in the flexural performance of metal materials, the test of fracture toughness of metal materials with prefabricated cracks and the study of crack propagation laws, the test of composite material bending resistance and interlaminar shear performance. Wait. Because the mechanical properties of materials will be different in different environments, in order to study the above mechanical properties of materials in high temperature environments, it is necessary to conduct four-point bending experiments on them in high temperature environments, but experimenters cannot manually load them in high temperature environments . [0003] In view of this, the proposal of the pr...
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IPC IPC(8): G01N3/02
CPCG01N3/02Y02P40/57
Inventor 雷振坤陈洋邓立波白瑞祥
Owner DALIAN UNIV OF TECH