T-joint shear testing device

Abstract

The invention discloses a T-joint shear testing device, and belongs to the technical field of testing of the shearing strength of a material. Support plates are arranged on the two sides of a base, supporting clamping plates are symmetrically arranged above the base, a sample is arranged between the supporting clamping plates, a pressing head is transversely arranged above the supporting clampingplates, a base sliding chute is formed in the base, a supporting clamping plate sliding chute is arranged on the lower side of the supporting clamping plate, the base sliding chute and the supportingclamping plate sliding chute correspond in position, a tightening handle penetrates through the supporting clamping plate sliding chute and the base sliding chute to connect the base and the supporting clamping plate; a locating cushion block is further arranged at the upper part of the base; web samples with different thicknesses in a T-joint are met through the distance adjustment of the supporting clamping plate, so that the universality of the testing device is improved; in addition, the clamping mode of the clamping plate guarantees that the loading pressing head applies a pure shear loadonto the sample in the vertical direction, no additional bending moment is produced on the sample in the test process, and the reliability of the shear test is improved.

Description

technical field [0001] The invention belongs to the technical field of material shear strength detection, in particular to a T-shaped joint shear test device. Background technique [0002] The T-joint structure is a connection structure widely used in aerospace, automobile and other fields. It is an important research topic for designers to study the strength of the T-joint structure under different load conditions. Among them, shearing is the main load-bearing form of T-joint structure, and the shear strength of T-joint is obtained through tests to provide a basis for engineering design. However, the currently available T-joint shear test devices cannot simulate the effect of pure shear load well, which may cause non-pure shear damage, and the results of T-joint shear performance tests are often inaccurate, so satisfactory results cannot be obtained. test results. Contents of the invention [0003] Aiming at the problems existing in the prior art, the present invention ...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems existing in the prior art, the present invention discloses a T-joint shear test device. The device is provided with left and right support splints, and the distance can be adjusted to meet the web samples of different thicknesses in the T-joint. At the same time The clamping method of the splint can ensure that there is no additional bending moment, which solves the technical defect of not being able to simulate the pure shear load well and causing non-pure shear damage in the prior art

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