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Clamp for plate compression-shear fracture analysis sample, method thereof and sample

A technology for analyzing samples and fracture tests, which is applied in the direction of analyzing materials, testing material strength by applying stable shear force, testing material strength by applying stable tension/pressure, etc., to reduce the compression deformation of sheet metal and change the loading angle , Processing and production convenient and quick effect

Active Publication Date: 2020-09-15
UNIV OF SCI & TECH BEIJING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For sheet metal, there are many challenges in studying the failure behavior in the compressive and shear dominant stress intervals

Method used

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  • Clamp for plate compression-shear fracture analysis sample, method thereof and sample
  • Clamp for plate compression-shear fracture analysis sample, method thereof and sample
  • Clamp for plate compression-shear fracture analysis sample, method thereof and sample

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Embodiment Construction

[0042] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0043] like figure 1 As shown, the present invention is a clamp for a sample for plate compression-shear fracture analysis, and the clamp includes;

[0044] The bottom plate 1 is used to install the rear splint 2 and connect the testing machine to the rear splint 2;

[0045] The rear splint 2 is used to adjust the force angle of the applied force on the sample according to the test requirements;

[0046] The front splint 3 is used to stably fix the sample 5 between the rear splints, so that the force acts on both ends of the sample 5 evenly;

[0047] Wherein, the bottom plate includes an upper bottom plate and a lower bottom plate; the two rear clamping plates are symmetrically arranged at the ends of the upper and lower bottom plates, respectively, and the two front clamping plates are symmetrically arranged at the end...

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Abstract

The invention relates to the technical field of material mechanical property testing equipment, in particular to a clamp for a plate compression-shear fracture analysis sample, a method thereof and asample. The clamp comprises a bottom plate, two rear clamping plates and two front clamping plates. The two rear clamping plates are symmetrically arranged at the ends of the upper bottom plate and the lower bottom plate respectively, and the two front clamping plates are symmetrically arranged at the ends of the two rear clamping plates respectively. During a test, the front clamping plates, thetreated sample and the rear clamping plates are locked together; the rear clamping plates are connected with an annular clamp body on the bottom plate through two pulleys to form a slidable connectingbody; and the testing angle is adjusted and locked, then the bottom plate is connected to a universal testing machine, a three-dimensional digital image related measuring system is adopted for recording the deformation process of the sample, and when it is observed that the sample is broken, the plate compression-shear fracture test can be completed. The device provided by the invention can realize fracture analysis of multiple compression-shear stress states by adopting a single sample, and ensures that the sample has large deformation and stable and uniform deformation.

Description

technical field [0001] The invention relates to the technical field of material mechanical property testing equipment, in particular to a clamp for a sample for compression-shear fracture analysis of a plate, a method and a sample thereof. Background technique [0002] In the 21st century, my country's automobile industry is one of the fastest growing industries in recent years. However, with the improvement of environmental, energy, safety and other requirements, reducing fuel consumption and waste emissions through lightweight automobile materials has gradually become a current research focus. The extensive demand for high-performance and complex parts in the automotive industry is also a huge challenge to lightweight manufacturing processes. In the forming process of high-performance complex parts, the material will go through a variety of processing processes, such as rolling, extrusion, bending, deep drawing, flanging and blanking. However, during these complex forming...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/04G01N3/08G01N3/24
CPCG01N3/04G01N3/08G01N3/24G01N2203/0003G01N2203/0019G01N2203/0025G01N2203/0026G01N2203/0067G01N2203/0252G01N2203/027G01N2203/0282G01N2203/0423G01N2203/0647G01N2203/0682
Inventor 钱凌云马腾云安鹏孙朝阳纪婉婷
Owner UNIV OF SCI & TECH BEIJING
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