A customized pulse load test system and method based on gradient aluminum foam

A technology of load test and aluminum foam, which is applied in the field of pulse load test loading, can solve problems such as the inability to control waveforms, and achieve the effects of saving test costs, considerable economic benefits, and strong repeatability
CN107478093BActive Publication Date: 2019-07-23XI AN JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XI AN JIAOTONG UNIV
Publication Date
2019-07-23

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Abstract

The invention discloses a test method for customizing pulse loads based on gradient foamed aluminum. The method comprises the following steps that according to the waveform of the pulse load needing to be customized, the length, the gradient sequence and the shot speed of a gradient foamed aluminum shot are designed; the designed gradient foamed aluminum shot is prepared; and the prepared gradient foamed aluminum shot is ejected out from a first-level light-gas gun with the designed shot speed, and accordingly the customized pulse load waveform is formed at the position of a shot target hitting position. According to the method, the method capable of generating different waveforms of pulse loads in a customizing manner is provided for researchers and project designers, and by means of the method, multiple waveforms including a triangular pulse load, a rectangular pulse load and an explosion pulse load can be customized. The method can be widely applied to test simulation of the explosion impact load in the fields of traffic transportation, safety protection, military and the like, the test cost can be effectively saved, and considerable economic benefits are achieved.
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Description

technical field

[0001] The invention belongs to the technical field of pulse load test loading, in particular to a customized pulse load test system and method based on gradient aluminum foam, in particular to a method for customizing pulse loads with different waveforms in a laboratory. Background technique

[0002] The dynamic response of structures under impulse loads such as explosive shocks is an important research topic that widely exists in the fields of transportation, security protection, and military affairs, and has attracted extensive attention from researchers from all over the world. However, experimental research on this topic lags far behind theoretical and numerical methods. The reason is that the test loading of pulse loads such as explosive shocks often involves high-energy explosives. This loading method has disadvantages such as poor safety, the need for a special test site, complex technology, and high cost, especially the inability to customize the req...

Claims

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