Low-temperature in-situ biaxial tensile mechanical property testing device
A technology of biaxial stretching and testing device, which is used in measuring device, using stable tension/pressure to test the strength of materials, scientific instruments, etc., can solve the lack of effective research on the micro-mechanical behavior and damage mechanism of anisotropic materials, The problems of large mechanical structure and incompatibility with microscopic imaging equipment have achieved the effect of good application prospects, small footprint and compact structure
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[0038] The detailed content and specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0039] See Figure 1 to Figure 9 As shown, the low-temperature in-situ biaxial tensile mechanical performance testing device of the present invention adopts a vertical arrangement as a whole structure, and includes a driving unit, a transmission unit, a signal detection unit, a clamping unit and a temperature loading unit. The shaft loading power is provided by a stepping motor; the transmission unit is composed of four centrally symmetrical screw rods, a moving guide rod, a sliding block and a linear guide rail for power transmission of the device. The signal detection unit includes a tension sensor, a linear grating displacement sensor, and an optical microscope for in-situ observation, wherein the sliding block assembled on the linear guide drives the extension connector, the tension sensor and the clamp to move to achiev...
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