Fracture test device with double-material interface

A fracture test, dual-material technology, applied in the direction of measuring devices, analyzing materials, and testing the strength of materials by applying a stable shear force, which can solve the problem that the deviation angle is not easy, the theoretical derivation is not easy, and the test operability is not strong, etc. problems, to achieve the effect of convenient experimental research
CN101520386AInactive Publication Date: 2009-09-02SOUTHEAST UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SOUTHEAST UNIV
Publication Date
2009-09-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a fracture test device with a double-material interface, which comprises a fatigue machine, a bottom plate fixed on the fatigue machine, a second material placed on the bottom plate, a pressure plate placed on the second material, and a first material of which one end is attached to the second material, wherein the fracture test device with the double-material interface also comprises a top plate fixed on the pressure plate and a freely telescopic post rod system placed on the top plate; and the post rod system comprises a support rod fixed on the top plate, a support block connected to one end of the support rod, and a post rod passing through the support block. The fracture test device with the double-material interface not only can accurately simulate the fracture breakage of a slippage type mode and a hybrid mode of the double-material interface, but also can accurately obtain various key parameters required by calculating the fracture energy of the fracture mode.
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Description

technical field

[0001] The invention relates to a test device, in particular to a fracture test device for a double-material interface. Background technique

[0002] Fiber composite materials (namely FRP) have the advantages of high strength, light weight, corrosion resistance, fatigue resistance, convenient construction, etc., and are widely used in the field of civil engineering reinforcement. The concrete structure and steel structure can be strengthened in terms of bending resistance, shear resistance and earthquake resistance through the FRP external bonding method, so that the durability of the structure can be enhanced. However, in the strengthened structure, the peeling failure between the FRP and the concrete (or steel structure) interface often occurs before the strength failure of the component occurs. This problem has been puzzling a large number of research scholars at home and abroad. Scholars at home and abroad have tried to explain its failure mechanism wit...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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