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Trans-scale micro-nano scale in situ tension compression mechanical property test platform

An in-situ stretching and testing platform technology, which is applied in the direction of applying stable tension/pressure to test the strength of materials, can solve problems such as in-situ observation of high-resolution microscopic imaging systems, and achieve compact structure and strain Rate-controllable, wide-ranging effects

Active Publication Date: 2011-11-02
赵宏伟
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  • Abstract
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AI Technical Summary

Problems solved by technology

Traditional stretching machines are all aimed at macro-scale specimens, which do not involve the study of mechanical properties in the nanoscale category of materials, nor do they involve in-situ observations under high-resolution microscopic imaging systems

Method used

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  • Trans-scale micro-nano scale in situ tension compression mechanical property test platform
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  • Trans-scale micro-nano scale in situ tension compression mechanical property test platform

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Embodiment Construction

[0020] The detailed content of the present invention and its specific implementation will be further described below in conjunction with the examples shown in the accompanying drawings.

[0021] See attached figure 1 , 2, 3, 4, a cross-scale micro-nano-scale in-situ tensile / compression mechanical performance testing platform according to the present invention, mainly consists of a precision drive unit, a signal detection control unit, a three-degree-of-freedom manual adjustment unit, clamping and support unit composition. The precision drive unit is connected by the DC servo motor 1 through the coupling 32 and the first-stage worm gear 18-3 worm 22, and is composed of the second-stage left and right worm wheels 18-1, 18-2, the second-stage worm 20 and the left and right precision ball screws. 10-1 and 10-2 decelerate and increase the distance of the rotational motion output by the DC servo motor 1 to provide a large tensile / compressive force and ultra-low strain speed, where...

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Abstract

The invention relates to an in situ nanomechanical test and discloses a trans-scale micro-nano scale in situ tension compression mechanical property test platform which can be provided for an in situ tension / compression test and synchronous detection and synthesis of load / displacement signals. The platform is characterized in that: the platform comprises an accurate drive unit, a signal detection and control unit, three freedom degree manual adjustment unit, a clamp and a support unit. A direct current servomotor of the accurate drive unit is connected with a two-stage turbine worm mechanism through a coupling. The signal detection and control unit comprises a displacement sensor, a force transducer and an encoder forming a fixed connection with the current servomotor. The three freedom degree manual adjustment unit comprises a Y-direction manual adjustment knob connected with a lower layer main body base of a X-Y manual platform, a X-direction manual adjustment knob connected with an upper layer main body base of the X-Y manual platform and a Z-direction manual adjustment screw connected with a Z-direction adjustment lower wedge-shaped block, wherein the Z-direction adjustment lower wedge-shaped block forms a sliding match with a Z-direction adjustment upper wedge-shaped block.

Description

technical field [0001] The invention relates to a cross-scale micro-nano scale in-situ tension / compression mechanical performance testing platform. It can monitor the microscopic deformation, damage and fracture process of materials in situ, and provide a testing method for revealing the mechanical properties and damage mechanism of materials at the nanoscale. technical background [0002] In-situ nanomechanical testing refers to the dynamic monitoring of the microscopic deformation and damage of materials under load through electron microscopes, atomic force microscopes, or optical microscopes during the mechanical performance testing of specimen materials at the nanometer scale. Mechanical testing techniques. This technology deeply reveals the micro-mechanical behavior of various materials and their products, the damage mechanism and its correlation with load action and material properties. In the field of many nanomechanical tests, parameters such as elastic modulus, ha...

Claims

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Application Information

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IPC IPC(8): G01N3/08
Inventor 赵宏伟马志超黄虎耿春阳张霖王开厅李建平刘长胜赵波
Owner 赵宏伟
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