Sandwich plate with oblique rib plates as well as application, connecting manner and preparation method of sandwich plate

Abstract

The invention discloses a sandwich plate with oblique rib plates as well as application, a connecting manner and a preparation method of the sandwich plate. The sandwich plate comprises an upper panel, a lower panel and a core material arranged between the upper panel and the lower panel through filling, wherein a plurality of upper rib plates are obliquely and uniformly distributed on the inner side of the upper panel in parallel, and a plurality of lower rib plates are obliquely and uniformly distributed on the inner side of the lower panel in parallel. According to the sandwich plate, by changing the structural form of a traditional sandwich plate, the layering phenomenon of the sandwich plate is overcome, and the invasion resistance of the sandwich plate is obviously improved; by replacing a traditional steel plate with the sandwich plate during the ship construction, the protecting performance of a ship can be improved, the weight of the ship can be reduced, and the comfort and the safety of the ship can be improved; and a machining method is convenient, the cost is relatively low, the invasion resistance is excellent, so that the sandwich plate can be widely applied to the fields of ship structures, building structures, armored cars, bulletproof structures and the like.

Description

technical field [0001] The invention relates to a sandwich panel suitable for armor protection and ship building, in particular to a sandwich panel with oblique ribs and its application, connection method and preparation method. Background technique [0002] Over the past century, military and civilian engineers have carried out a lot of research on high-speed penetration phenomena. Engineers engaged in armor protection research have tried every means to reduce the damage of the protected structure and resist the penetration of high-speed projectiles. With the continuous development of science, the impact resistance of some traditional materials is far from meeting the required requirements. Therefore, various new composite materials have emerged, and sandwich panels are one of them. The emergence of sandwich panels has enabled engineers to find new methods in the field of anti-penetration research. Due to their light weight, high strength and other excellent properties, san...

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Problems solved by technology

[0005] It can be seen from the above that there are many types and functions of sandwich panels at present. Generally, the impact of the projectile is resisted by the high-speed collision between the high-strength panel and the projectile, or the impact energy of the projectile is absorbed by different energy-absorbing characteristics of the core material, so as to protect the interlayer. There are not many studies on the improvement of the plate structure to increase the penetration resistance of the sandwich plate, and the widely used sandwich plate is facing delamination in ship construction, which seriously affects the service life and safety of the ship.

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