Thermal environment two-way loading test equipment and test method

A technology of two-way loading and testing equipment, which is applied in the direction of applying stable tension/pressure to test the strength of materials to achieve effective mechanical properties

Active Publication Date: 2019-01-08
BEIJING HANGXING MACHINERY MFG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical solution of the present invention is to overcome the deficiencies of the prior art and provide a thermal environment bidirectional loading based on optical speckle strain measurement technology that can accurately measure the mechanical properties of materials in high temperature environments and complex loading conditions. Test equipment and methods

Method used

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  • Thermal environment two-way loading test equipment and test method
  • Thermal environment two-way loading test equipment and test method
  • Thermal environment two-way loading test equipment and test method

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Embodiment Construction

[0043] In order to make the above objects, features and advantages of the present invention more comprehensible, the specific implementation manners of the present invention will be described in detail below with reference to the accompanying drawings.

[0044] Such as Figure 1 to Figure 5 As shown, the present invention provides a thermal environment bidirectional loading test equipment for performing optical speckle strain measurement on a cross-shaped test piece, including: a frame, which includes a workbench 30, centered on the workbench 30, Four side supports and optical measurement support that are distributed in a cross shape; a heating furnace 29, which is arranged on the workbench 30, and the circumferential side wall of the heating furnace 29 is formed with four wall holes, and the heating furnace The top wall is provided with an observation window; four stretching devices are respectively arranged on the four side supports, and the stretching devices include a stre...

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Abstract

The invention discloses thermal environment two-way loading test equipment and a test method and belongs to the technical field of mechanical property test of materials in thermal environments and under complex loading. The equipment and method are used for performing optical speckle strain measurement on a cross test piece. The equipment comprises a rack, a heating furnace, four drawing devices,a light source and a camera, wherein drawing rods of the drawing devices extend into the heating furnace via wall holes of the heating furnace, so that chucks are located in the heating furnace, the test piece is clamped by four chucks to be located in the heating furnace, when linear drive mechanisms drive each drawing rod to move linearly to draw the test piece, force sensors are arranged on thedrawing rod to measure tension borne by the test piece, and the mechanical property of the cross test piece can be effectively tested in the high temperature environment and under the two-way loadingcondition.

Description

technical field [0001] The invention relates to a thermal environment bidirectional loading test equipment and a test method, in particular to a thermal environment bidirectional loading test equipment and a test method based on an optical speckle strain measurement method, and belongs to the technical field of mechanical property testing of materials under thermal environment and complex loading. Background technique [0002] Today's sheet metal forming is obtained through multiple rolling, and this production method results in anisotropic sheet metal. When studying the mechanical properties of anisotropic sheets at high temperatures, the previous method is to use uniaxial tensile tests in different directions. However, there is a certain gap between the material stress-strain curve obtained by uniaxial stretching and the actual material performance under complex loads. In addition, sheet metal forming is often carried out at high temperature, and the mechanical properties...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/18
CPCG01N3/18
Inventor 肖瑞姚为李宏伟李保永秦中环刘奇刘伟徐凯薛杰
Owner BEIJING HANGXING MACHINERY MFG CO LTD
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