Test device and application method of compound tension/compression shear at any angle
A technology of arbitrary angles and included angles, applied in the direction of measuring devices, testing material strength by applying stable tension/compression, testing material strength by applying stable shear force, etc., to achieve low cost, expand the testing range, and easy to use Effect
Active Publication Date: 2022-03-18
TAIYUAN UNIV OF TECH
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Problems solved by technology
[0003] In order to solve the problem that compound tensile shear and compound compressive shear at any angle can be realized at the same time, the present invention provides a device for testing the mechanical properties of materials under compound tensile shear and compound compressive shear at any angle
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Embodiment Construction
[0020] Such as figure 1 , 2 As shown, a device for testing the mechanical properties of materials under arbitrary angle composite tension shear and composite compression shear includes two semi-discs 200 and a connecting head 100 for connecting the testing machine to the semi-disc 200, and the outer part of the semi-disc 200 is An arc-shaped groove 201 is arranged on the ring side, an arc-shaped convex groove 101 is arranged symmetrically inside the connector 100, two positioning screw holes 102 are arranged on the surface of the connector 100, and the arc-shaped convex groove 101 of the connector 100 and the arc shape of the semi-disc 200 Groove 201 is connected with mortise and tenon, two positioning screw holes 102 are provided with positioning bolts 601, and the middle positions of the two semi-discs 100 are provided with mutually symmetrical cavity 203, and test sample 300 is installed and connected in cavity 203 .
[0021] Such as Figure 5 As shown, the test sample 3...
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The invention belongs to the field of material complex loading testing, in particular to a device and a use method for testing the mechanical properties of materials under arbitrary angle composite tensile shear and composite compressive shear. The problem that compound tensile shear and compound compressive shear can be simultaneously realized at any angle is solved. It includes two semi-discs and a connecting head for connecting the testing machine and the semi-disc. The outer ring side of the semi-disc is provided with an arc-shaped groove, and the inside of the connecting head is symmetrically provided with an arc-shaped convex groove. The arc-shaped convex groove of the connecting head is connected with the arc-shaped groove of the semi-disc by tenon and tenon, and the positioning bolts are arranged in the two positioning screw holes, and the middle positions of the two semi-discs are provided with mutually symmetrical cavities , the connection test specimen is installed in the cavity. The invention realizes the assembly with the common universal material testing machine, and is accurate in assembly, simple in use, safe and reliable, and low in cost. Moreover, it can simultaneously realize composite tensile shear and composite compressive shear loading at any angle, thereby expanding the testing range of ordinary universal testing machines.
Description
technical field [0001] The invention belongs to the field of material complex loading testing, in particular to a device and a use method for testing the mechanical properties of materials under arbitrary angle composite tensile shear and composite compressive shear. Background technique [0002] As we all know, engineering materials are often in a complex stress state during service, and the mechanical properties of materials under complex loads are significantly different from those under simple loads. The general mechanical testing system commonly used at present can only measure the mechanical properties of materials under uniaxial loading, but cannot capture the mechanical properties of materials under complex stress states. In the prior art, all the composite loading devices are single compression-shear or tension-shear devices, and can only realize composite loading at a specific angle. Therefore, it is an urgent problem to be solved by those skilled in the art to pr...
Claims
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IPC IPC(8): G01N3/08G01N3/24G01N3/02
CPCG01N3/08G01N3/24G01N3/02G01N2203/0017G01N2203/0019G01N2203/0025G01N2203/0026
Inventor 邱吉树学峰金涛肖革胜苏步云
Owner TAIYUAN UNIV OF TECH