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Energy absorption core layer, sandwich structure and preparation method

A sandwich structure and core layer technology, which is applied in the field of sandwich structure and its preparation, and energy-absorbing core layer, can solve the problems of inability to absorb energy and impact, reduce the mechanical properties of the sandwich structure, increase the structural weight, etc., and achieve improved absorption Performance and impact resistance, good ventilation, and the effect of avoiding material aging

Inactive Publication Date: 2020-07-10
GUANGZHOU UNIVERSITY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

The sandwich structure in the prior art is generally made of aluminum alloy, which is fixed by gluing when in use. Specifically, the panels are glued on the upper and lower sides of the sandwich structure of the honeycomb core, and the panel is completely covered with the sandwich structure. This method of pasting is easy. Sealing water and water vapor into the interior of the honeycomb core sandwich structure increases the weight of the structure on the one hand; on the other hand, it is easy to reduce the mechanical properties of the entire sandwich structure; Insufficient strength, can not play the purpose of energy absorption and impact resistance

Method used

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  • Energy absorption core layer, sandwich structure and preparation method
  • Energy absorption core layer, sandwich structure and preparation method
  • Energy absorption core layer, sandwich structure and preparation method

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Embodiment Construction

[0029] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "bottom" etc. Orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. It should be understood that the terms "first", "second", etc. are used in the present invention to describe va...

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Abstract

The invention relates to the technical field of constructional engineering, in particular to an energy absorption core layer, a sandwich structure and a preparation method. The energy absorption corelayer comprises a plurality of continuous folding units which are integrally formed, each folding unit comprises a first panel, a second panel, a third panel and a fourth panel which are folded in a crossed mode, the included angle between the fourth panel and the horizontal plane is a dihedral angle, and the dihedral angle ranges from 49 degrees to 52 degrees. An upper plate is fixedly arranged on the energy absorption core layer in a sticking mode, and a lower plate is fixedly arranged under the energy absorption core layer in a sticking mode. According to the energy absorption core layer, the mechanical property of the energy absorption core layer can be improved, cracks of the energy absorption core layer caused by one-time forming are avoided through the preparation method of the sandwich structure, and the energy absorption capacity and the impact resistance are improved.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to an energy-absorbing core layer, a sandwich structure and a preparation method thereof. Background technique [0002] Due to the development of economy and transportation, the probability of vehicle collisions has increased, and the impact resistance of vehicles in collision accidents is extremely important for driving safety. Sandwich structures are widely used in automobiles, trains, heavy locomotives and ships because of their good energy absorption capacity, flexural strength and plasticity. [0003] The honeycomb core used in the prior art is widely used as the sandwich core of the sandwich structure in the head energy-absorbing structure of trains and heavy locomotives. The sandwich structure in the prior art is generally made of aluminum alloy, which is fixed by gluing when in use. Specifically, the panels are glued on the top and bottom of the sandwich st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/01B32B15/20B32B3/12B32B7/12B32B37/12
CPCB32B3/12B32B7/12B32B15/016B32B15/20B32B37/1284B32B2307/102B32B2307/304B32B2307/56
Inventor 项新梅崔文天邹世淼
Owner GUANGZHOU UNIVERSITY
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