Material mechanical property in-situ testing system and method in dynamic and static load spectrum

A technology of material mechanics and in-situ testing, which is applied in the direction of analyzing materials, testing material strength by applying repeated force/pulsation force, testing material strength by applying stable shear force, etc. Technology and other issues

Active Publication Date: 2016-12-14
JILIN UNIV
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  • Claims
  • Application Information

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Most of the above research work uses vector synthesis and decomposition methods to decouple the tension-shear compo...

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  • Material mechanical property in-situ testing system and method in dynamic and static load spectrum
  • Material mechanical property in-situ testing system and method in dynamic and static load spectrum
  • Material mechanical property in-situ testing system and method in dynamic and static load spectrum

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Embodiment Construction

[0042] The detailed content of the present invention and its specific implementation will be further described below in conjunction with the accompanying drawings.

[0043] see Figure 1 to Figure 14 As shown, in the in-situ testing system for mechanical properties of materials under the static and dynamic load spectrum of the present invention, the main body size of the mechanical unit is 590mm × 578mm × 392mm, which is based on the German GOM-ARAMIS three-dimensional strain optical measurement system and the Japanese Nikon SMZ745 optical body It is designed for the observation conditions of the microscope and is compatible with other types of video extensometers and optical microscopic imaging systems with continuous zoom function.

[0044] see Figure 1 to Figure 4 As shown, the in-situ testing system for the mechanical properties of materials under the static and dynamic load spectrum of the present invention includes an Arcan biaxial clamping subsystem, a press-in testin...

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Abstract

The invention relates to a material mechanical property in-situ testing system and method in a dynamic and static load spectrum, and belongs to the field of mechanical tests. The system integrates the following functions: a static testing function of biaxial drawing and shearing in an orthogonal plane, a shearing static testing function, a double shaft pull-pull mode fatigue testing function, and a static/dynamic press testing function. A complicated static/dynamic load spectrum can be established. Multi-mode composite load mechanical property evaluation can be performed on a film material or a block material, for example: high-cycle fatigue tests based on double-shaft pre-stretching load and impact press tests based on double-shaft stretching-shearing pre-load. At the same time, special defects are pre-fabricated on the central area and cross shaped arm area of a test piece; the analysis functions of a variable-zoom optical imaging system or a digital speckle strain analysis system can be utilized; the provided system and method can also be used to research the deformation behavior and cracking expansion rules of micro defects in a component under a multi-dimensional stress, and an evaluation tool is provided for performance degradation rules of products and optimized preparation method of materials.

Description

technical field [0001] The invention relates to the field of mechanical testing, in particular to an in-situ testing system and method for mechanical properties of materials under a static and dynamic load spectrum, especially a material microcosmic in-situ mechanical testing system integrating various static and dynamic testing functions. The system has rich test modes such as biaxial tension, biaxial fatigue, biaxial tension-shear, impact compression, etc., and through the integration with optical imaging system or digital speckle strain analysis system, The fatigue failure mechanism and performance weakening law of materials are studied to provide testing tools for optimizing the material preparation process and improving the service reliability of the structure. Background technique [0002] The stress form and physical field environment of materials and their products under service conditions are complex and changeable, and they are often subjected to static and dynamic...

Claims

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Application Information

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IPC IPC(8): G01N3/00G01N3/08G01N3/24G01N3/04G01N3/02
CPCG01N3/00G01N3/02G01N3/04G01N3/08G01N3/24G01N3/32G01N2203/0016G01N2203/0025G01N2203/0073G01N2203/0254G01N2203/0272G01N3/068G01N2203/0003
Inventor 马志超赵宏伟任露泉张世忠董景石范尊强方岱宁马敬春裴永茂张起勋范辉庄庆伟
Owner JILIN UNIV
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