The response of the sandwich panel under dynamic load is not clear
There is no economical industrial production method. In recent years, due to the increase of explosions and terrorist attacks, foam aluminum sandwich panels have gradually gained attention as building explosion-proof materials. In view of the above reasons, the core material foam is used in construction explosion-proof engineering The application in practice still has a long way to go. The results show that the new type of protective door has a good attenuation performance against explosion shock waves and can play a protective role.
The quantitative relationship between the microstructure and the macroscopic constitutive structure of the sandwich panel material has not been established, and the response of the sandwich panel under dynamic load is not clear. The impact of anti-explosion performance. According to the anti-explosive effect of the cascell core material foamed plastic board, the front and back of the door The steel plate is filled with foam to make a new type of protective door, and ANSYS/LS-DYNA is used to verify the explosion-proof effect of the protective door. The higher cost limits the application range of the sandwich panel.
The results show that the core material foamed plastic beam made of industrial pure aluminum panels has better explosion-proof performance under the impact of explosion. Problems in application The core material foamed plastic board has excellent anti-explosion function, but it is still less used in building explosion-proof. 553 Core material foam, core material foam manufacturer, core material foam price The correct use method of foam bridge core mold application of high temperature resistant foam aluminum material.Core material foam plastic '
The application of core material foam plastic board in building explosion-proof: core material foam plastic board can absorb energy through plastic deformation under explosion or strong impact load. Compared with single-layer board, it has higher Quasi-static strength and high anti-explosion performance. The main reasons are the following two aspects: First, the core material foamed plastic board material is still in the research stage. Furthermore, the explosion-proof mechanism of the foam core material is still It is not completely clear.
The same foam aluminum core material is used to compare industrial pure aluminum panels and 304 stainless steel panels. 1. The production cost of the foam itself is relatively high, and the sandwich panel needs to increase the cost. Application research in building explosion-proof steel plate aluminum foam The multi-layer composite structure has better explosion-proof effect than a single foam aluminum and can be used in the explosion-proof design of military buildings
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