Energy absorption structure for corrugated sandwich panel

Abstract

The invention discloses an energy absorption structure for a corrugated sandwich panel. The energy absorption structure consists of an upper panel, multiple layers of corrugated cores, a sandwich panel and a lower panel, all of which are sequentially stacked and are adhered by an epoxy-structure adhesive or brazed to form an integrated structure; the section of the corrugated core is in a trapezoid, triangle or sine curve shape, and when the layer number of the corrugated cores is larger than or equal to two, the arrangement manner of the corrugated cores is regular arrangement, staggered arrangement or 0-degree or 90-degree arrangement. The energy absorption structure for the corrugated sandwich panel has the characteristics of light weight, strong toughness and good shock resistance; in the whole energy absorption procedure, the impact force is stable; due to the openness of a core material structure, the energy absorption structure can effectively and actively dissipate collision heat during collision, so that the structure material avoids yielding in advance under the influence of high temperature. The energy absorption structure for the corrugated sandwich panel can be applied to an automobile buffering energy absorption device, and also can be applied to any load and field needing the buffering energy absorption structure.

Description

Technical field [0001] The invention relates to the technical field of automobile passive safety, in particular to a corrugated sandwich panel energy absorbing structure capable of effectively buffering energy during automobile collision. Background technique [0002] "Safety, environmental protection, and energy saving" are the three major themes of contemporary automobile development, and automobile passive safety is the top priority of automobile safety design. A good buffering and energy-absorbing structure not only requires that the collision energy be converted as much as possible into the deformation of the structure, that is, internal energy; it also requires that the unit mass of the structure has a higher energy absorption, that is, larger than the energy absorption, thereby improving the structure and material The utilization rate of the system meets the requirements of lightweight design, and the goal of energy saving has been achieved. At this stage, the widely used...

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Problems solved by technology

Among them, the tubular energy-absorbing structure uses axial buckling and progressive telescopic deformation to absorb energy, but the load impact fluctuation is large during the impact process, so the energy absorption of the thin-walled tube is uneven; and the aluminum honeycomb structure in the energy-absorbing process, due to The closedness of the core material structure cannot effectively and actively dissipate the heat generated during the collision process, causing the material to yield early

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