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Device and method for repeated bending tests under complex load

A technique of repeated bending and complex loading, applied in the field of inspection, which can solve the problems of increasing equipment cost, increasing test time and complexity, etc.

Active Publication Date: 2009-10-21
SHOUGANG CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A complete set of bending dies will increase the cost of equipment, and changing the die during the test will increase the test time and complexity

Method used

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  • Device and method for repeated bending tests under complex load
  • Device and method for repeated bending tests under complex load
  • Device and method for repeated bending tests under complex load

Examples

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Embodiment Construction

[0034] The terms "horizontal", "vertical", "upper and lower" used in the following descriptions are only used to exemplarily describe the embodiments of the present invention, and are not intended to limit the specific orientation of the present invention.

[0035] Attached below figure 2 To describe further:

[0036] Repeated bending test equipment under complex loads, including support system 1, tensile loading system 2, bending loading system 3, adjustment system 4 and control system 5.

[0037] The support system 1 includes beams 11 and columns 12 . Wherein, the crossbeam 11 is made of rigid material, and in this embodiment is placed horizontally, and no bending deformation occurs under the condition of force. The column 12 is made of rigid material, and in this embodiment, it is arranged vertically to support the beam 11; meanwhile, the column 12 can be used as a guiding device for the bending table 32, and its surface is processed into a smooth surface with a low coef...

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Abstract

The invention relates to a device and a method for repeated bending tests under complex load, which belong to the technical field of detection. The device comprises the following parts: a supporting system as a system framework, a tension loading system provided with two clamping devices for performing tension loading on a sample by fixing two ends of the sample on the clamping devices, a bending loading system provided with bending rollers for achieving the bending loading of the sample without changing the tension loading applied to two ends of the sample through an S-shaped bending passage formed by the bending rollers, an adjusting system for adjusting the distance between the bending rollers, and a control system which is connected with and controls the tension loading system and the bending loading system respectively so that the tension loading system and the bending loading system are controllable, wherein the bending loading system performs repeated bending on a sample target area fixed in the tension loading system so that the tensioning and the bending processes are loaded simultaneously and are broken and damaged in the target area. The invention also provides the method for performing the repeated bending tests under the complex load through the device.

Description

technical field [0001] The invention belongs to the technical field of detection, and in particular relates to equipment and a method for repeated bending tests under complex loads. Through the repeated bending tests of strip samples under complex loads, the repeated bending performance of materials under complex loads is tested. Background technique [0002] The repeated bending test is an important method to evaluate the plastic deformation ability of thin plates or thin strips under repeated bending conditions. [0003] Such as figure 1 As shown, in the traditional repeated bending test, one end of the sample 61 is mostly fixed, and the rest part penetrates into the protrusion 82 on the rocker arm 83, wherein the rocker arm 83 is fixed on the workbench and can rotate around a fixed axis. The test process Rotate the rocker arm 83 in the middle to make the sample 61 bend around the support 81 with a specified radius, and then rotate the rocker arm 83 in the opposite direct...

Claims

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Application Information

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IPC IPC(8): G01N3/34
Inventor 张永强刘兴全章军
Owner SHOUGANG CORPORATION
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