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Step-loading plate compression, shearing and testing device

A test device, step-by-step technology, applied in the direction of testing the strength of materials by applying a stable shear force, can solve problems such as failure to achieve shear fracture

Active Publication Date: 2013-05-01
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology is used for punching and shearing the window baffle of the electrolytic cell. The structural characteristics adopted determine that it is only suitable for thin plate materials, and the deformation zone is in a state of shear stress at the initial stage of deformation, and then quickly turns into a state of tensile stress, which cannot realize three-way stress. Shear fracture under compressive stress

Method used

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  • Step-loading plate compression, shearing and testing device
  • Step-loading plate compression, shearing and testing device
  • Step-loading plate compression, shearing and testing device

Examples

Experimental program
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Embodiment

[0032] Such as image 3 As shown, this embodiment includes: an indenter assembly 2, a fixing assembly 7, a sliding locking assembly 16 and a base assembly 17, wherein: the indenter assembly 2 is positioned above the sheet material specimen to be tested for applying pressure to the specimen, The fixed assembly 7 and the sliding locking assembly 16 cooperate to clamp the test piece, and the fixed assembly 7 is fixed on the base assembly 17;

[0033] Such as Figure 5 , Figure 6 , Figure 7 As shown, the sliding locking assembly 16 includes: a front baffle 14, a first backing plate 13, a top block 12 and a pressing piece 15, wherein: the front baffle 14 is connected with the fixing assembly 7, and the top block 12 Located on one side of the test piece and set on the first backing plate 13, the first backing plate 13 and the front baffle 14 are coordinated by the guide mechanism, the pressing part 15 is matched with the front baffle 14, and the pressing part 15 acts on the Th...

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PUM

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Abstract

The invention relates to a step-loading plate compression, shearing and testing device which is used for testing strength characteristics of solid materials by using mechanical stress. The device comprises a pressing head assembly, a fixing assembly, a slideable locking assembly and a base assembly, wherein the pressing head assembly is arranged above a plate test piece to be tested and is used for applying pressure to the test piece, the fixing assembly and the slideable locking assembly are matched with each other to clamp the test piece, and the fixing assembly is fixedly arranged on the base assembly. The step-loading plate compression, shearing and testing device has the beneficial effects that the shear rupture of a plate under a three-dimensional compressive stress state is realized and data such as forming force and displacement during loading is recorded.

Description

technical field [0001] The invention relates to a device for testing the strength characteristics of solid materials by mechanical stress, in particular to a step-by-step loading plate compression shear test device. Background technique [0002] For the simulation of sheet metal forming, especially the simulation of large deformation separation processes such as fine blanking, material damage evolution and crack prediction have become the focus of research and production practice. At present, ductile fracture criteria or damage models are mostly used to complete. Whether it is a ductile fracture criterion or a damage model, physical tests, usually tensile or compressive tests at room temperature, are required to determine the parameters involved in the respective expressions before use. Since the above parameters are more sensitive to the stress state, and fine blanking is a shear separation process in a three-dimensional compressive stress state, only the parameters obtaine...

Claims

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Application Information

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IPC IPC(8): G01N3/24
Inventor 庄新村王涛赵震向华
Owner SHANGHAI JIAO TONG UNIV
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