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Impacting tester with double pendulum and testing method thereof

A technology of impact testing machine and test method, which is applied in the direction of testing the strength of materials with one-time impact force, can solve the problems of lack of impact test methods and equipment for thin plates and their connecting joints, and achieve simple and easy test methods and accurate test results Effect

Inactive Publication Date: 2005-10-12
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a gap in the existing impact test technology, which is the lack of impact test methods and equipment for thin plates and their joints

Method used

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  • Impacting tester with double pendulum and testing method thereof
  • Impacting tester with double pendulum and testing method thereof
  • Impacting tester with double pendulum and testing method thereof

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Embodiment Construction

[0035] Such as Figure 1~8 As shown, the present invention is composed of a frame, a sample base 1, a driven pendulum 2, an active pendulum 3, a dial 4, and a braking system.

[0036] 1. It has a frame composed of 4 or more uprights 5, bottom plate 6, axle frame 7, active pendulum lifting angle setting and release mechanism 8, see attached figure 1 ;

[0037] 2. There is a sample base 1 with a pressing device 11 on the side, the pressing device 11 serves to fix one side of the impact sample; the upper surface of the sample base 1 (the side adjacent to the driven pendulum) has The inclination angle of 0-90° (5° in this embodiment) ensures that no friction or even squeezing occurs with the pendulum and the sample that continue to punch after the sample is punched, see attached figure 1 with figure 2 ;

[0038] 3. It has a driven pendulum composed of a first connecting rod 21 and a pendulum 23 with a pressing device 22 on the side. The pressing device serves to fix the other side o...

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Abstract

An impact tester with double pendulum consists of driven pendulum formed by the first link lever and bob, driving pendulum formed by the second link lever and bob as well as sample base. Its test method includes lifting the driving pendulum up to preset angle, fixing it temporarily, fixing test sample in 'Z' shape on base and driven bob through packing device, resetting two pointers on scale, releasing the driving pendulum to shock driven pendulum for breaking test sample, recording frontlash angle of driving pendulum and calculating out consumed impact work.

Description

Technical field [0001] The invention relates to impact testing technology, in particular to a double pendulum impact testing machine and a testing method thereof. Background technique [0002] There are two typical impact tests: pendulum impact test and falling weight impact test. The pendulum impact test method is simple. The equipment used includes several parts such as pendulum, sample holder, dial and pointer. The sample is a 10×10×55mm block sample with a notch, and it is generally suitable for evaluation with a thickness of ≥10mm The impact resistance of the material. The drop-weight impact test system is complicated and expensive, and is generally not used in daily inspections. [0003] With the development of the automobile industry and aviation and aerospace industry, there are more and more applications of thin plates of lightweight materials (aluminum alloys, magnesium alloys, titanium alloys, high-strength steels, engineering plastics, composite materials, etc.), and ...

Claims

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Application Information

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IPC IPC(8): G01N3/30
Inventor 张洪延
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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