A composite core sandwich cylinder explosion-proof structure

Abstract

The invention discloses an explosion-proof structure of a sandwich cylinder with a composite core, and aims to solve the problem of insufficient protection capability of the current foam sandwich cylinder explosion-proof structure. The invention consists of an outer cylinder, a composite core, an inner cylinder, and a bottom end cover. The inner cylinder, the composite core, and the outer cylinder are coaxially assembled from inside to outside to form a sandwich structure, and the bottom end cover is welded under the composite core. end face. The composite core is composed of inner foam core, inner fiber layer, superelastomer core, outer fiber layer, and outer foam core; the inner cylinder is composed of cylinder, coating, inner lining and spacer. The coating is sprayed on the outer surface of the cylinder, and the cross-section of the side wall of the inner lining is a cylindrical shape of right triangle. The bottom end cover is composed of a metal cover and a cover inner core, and the cover inner core is coaxially nested in the metal cover. The invention has good energy absorption capacity of explosion shock wave, has strong adsorption capacity for high-speed fragments, and has superior performance in joint load protection of explosion shock wave and fragments.

Description

technical field [0001] The invention belongs to an explosion-proof structure, in particular to an explosion-proof structure of a sandwich cylinder with a composite core made of three materials: metal foam, superelastic body and high-strength fiber. Background technique [0002] In recent years, terrorist activities around the world have become increasingly frequent, and terrorists are extremely rampant, seriously threatening the safety of public places such as squares, railway stations, and airports. Terrorist activities are common around the world, and bombing attacks are the most common terrorist activities. According to the Global Terrorism Index (GTI) report released by the Institute for Economics and Peace (IEP) in November 2020, 13,826 people died of terrorism worldwide in 2019, and 63 countries or area where at least 1 person died from terrorism. Since 2014, Xinjiang has destroyed 1,588 violent terrorist gangs, captured 12,995 violent terrorists, and seized 2,052 ex...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a composite core sandwich cylinder explosion-proof structure to improve the structure's anti-explosion shock wave and fragment combination. load performance

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