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Novel anti-impact light interlayer structure

A sandwich structure, impact-resistant technology, applied in the field of sandwich structures, can solve the problems of reducing mobility, energy consumption, and no economic benefits.

Inactive Publication Date: 2015-04-08
SHENZHEN FIBER SUPER NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to defects in the sandwich structure of the existing sandwich structure, its performance is far from meeting the requirements of users
If the sandwich structure is too heavy to resist the potential huge impact, it is not economical to attach it to the tailgate of the dangerous goods tanker (too heavy, energy consumption), or to reduce the mobility of other vehicles

Method used

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  • Novel anti-impact light interlayer structure
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  • Novel anti-impact light interlayer structure

Examples

Experimental program
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Effect test

Embodiment 1

[0062] Panel; 2. Resin layer; 3. Composite pipe; 4. Foam;

[0063] Such as figure 1 with figure 2 As shown, the novel lightweight impact-resistant sandwich structure of the present embodiment comprises carbon fiber panels 1 (density: 1400kg / m 3 , thickness: 0.3mm, size: 150x150mm 2 , modulus of elasticity: 55GPa, ultimate tensile stress: 850MPa, ultimate tensile strain: 0.05, Poisson’s ratio: 0.07), with PVC foam 4 between two carbon fiber panels 1 (density: 80kg / m 3 , thickness: 10mm, elastic modulus: 70MPa, yield stress: 2MPa, compressive ultimate stress: 3MPa, compressive ultimate strain: 0.7, Poisson’s ratio: 0.35) As a sandwich material, PVC foam 4 and carbon fiber panel 1 are bonded by resin layer 2 A carbon fiber tube (diameter / tube wall thickness ratio: 7-43, quantity: 16, material parameters the same as the panel) is embedded between the PVC foam 4 as the composite tube 3 . The sandwich structure withstands the explosion of 38gPE4 explosive. Such as image 3 A...

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Abstract

The invention discloses a novel anti-impact light interlayer structure. The structure comprises panels on both sides and a sandwich material between the two panels, wherein the panels and the sandwich material are bonded through resin layers; a plurality of composite tubes are arranged in the sandwich material; the shape, the caliber, the wall thickness of the composite tubes are set according to the simulation of a three-dimensional non-linear finite element equation; carbon fiber tubes are simulated to be anisotropic materials and are damaged under the control of a damage standard; the sandwich foam is simulated to be crushable hardened plastic foam; the panels made of composite materials are simulated in the same manner of the carbon fiber tubes; a minimum quantity of lightest materials are selected according to rules; and the interlayer structure achieves an optimal energy absorption-weight ratio through the structure optimization.

Description

Technical field: [0001] The invention relates to a sandwich structure, in particular to a novel lightweight impact-resistant sandwich structure. Background technique: [0002] Due to defects in the sandwich structure of the existing sandwich structure, its performance is far from meeting the requirements of users. If the sandwich structure is too heavy to resist the potential huge impact, it has no economic benefit (too heavy, energy consumption) to attach it to the tail plate of the dangerous goods tanker, or reduce the mobility of other vehicles. Invention content: [0003] The object of the present invention is to provide a novel lightweight impact-resistant sandwich structure with better energy absorption-weight ratio and good impact resistance. [0004] The new lightweight impact-resistant sandwich structure of the present invention is characterized in that it includes panels on both sides and a sandwich material between the two panels, the panels and the sandwich ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B3/20B32B1/06B32B7/12
Inventor 官宇寰
Owner SHENZHEN FIBER SUPER NEW MATERIALS CO LTD
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