Device and method for testing tensile shear creep property of intermetallic adhesive

By designing a test device for tensile shear creep performance of intermetal adhesive equipped with tensile sensors, deformation measurement devices and servo motors, the problem of errors in existing devices that are difficult to maintain constant shear stress and deformation measurements during long-term tests is solved, and the high accuracy and reliability of the test are achieved.

CN119666731APending Publication Date: 2025-03-21CHINA ACAD OF BUILDING RES +1
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Patent Information

Application Number
CN202411956804.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-29
Publication Date
2025-03-21

AI Technical Summary

Technical Problem

The existing intermetallic adhesive tensile shear creep performance test device is difficult to maintain constant shear stress during long-term tests, and there are errors and discontinuities in deformation measurements, which affects the accuracy and reliability of the test.

Method used

A test device including a tension sensor, deformation measuring device, servo motor and computer control system was designed. The servo motor automatically compensates for shear stress fluctuations, and uses an electronic digital shift grating ruler to perform precise deformation measurement.

Benefits of technology

It realizes the maintenance of constant shear stress during long-term tests, improves the accuracy and reliability of the test, and can continuously record sample deformation data, making it easier for researchers to analyze creep behavior.

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Abstract

The invention relates to a device and a method for testing tensile shear creep performance of an intermetallic adhesive, and belongs to the technical field of adhesive testing. The upper end of a sample is fixed to the lower end of the connecting sleeve through the tension sensor, the lower end of the sample is fixed to a lifting rod through a lower pin, a lifting platform is arranged at the bottom of the lifting rod and connected to the top of a shear type lifting device, and a servo motor is connected to the horizontal side of the shear type lifting device; the deformation measuring device is a displacement reading device and comprises a capacitive grating displacement sensor, a display, a reflecting grating and a data port; and the tension sensor, a data port of the displacement reading device and the servo motor are all in signal connection with the computer control system. According to the invention, the problems of accurate measurement of the creep condition of the adhesive and continuous recording of deformation data can be effectively solved.
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