A fiber composite material imitating the structure and function of lobster cuticle

A technology of fiber composite materials and cuticles, applied in the direction of layered products, synthetic resin layered products, vehicle parts, etc., can solve problems such as poor strength, single laying structure, and difficulty in finding effective ways to improve crack resistance. Achieve the effect of improving impact resistance and crack resistance

Active Publication Date: 2021-12-07
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the simple layout structure of traditional fiber composite materials, compared with metal materials, it is difficult to find effective ways to improve its crack resistance performance, and its strength is poor

Method used

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  • A fiber composite material imitating the structure and function of lobster cuticle
  • A fiber composite material imitating the structure and function of lobster cuticle
  • A fiber composite material imitating the structure and function of lobster cuticle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] This example 1 discloses a fiber composite material imitating the structure and function of lobster cuticle. The bionic arrangement structure fiber composite material of the present invention is derived from such as figure 1 The non-linear rotation angle helical fiber structure of the cuticle of the lobster is shown, and the bionic fiber layout structure shown in Figure 2 is obtained by design, wherein: in Figure 2, the rotation angle x of the helical fiber resin layer satisfies the helix-oscillation function In this example, a=±30° and ±45° biomimetic arrangement structure of high-strength crack-resistant fiber composite material is formed by laying up helical fiber resin layers according to the helical angle of the helical-oscillating function.

[0057] Wherein, taking the center line perpendicular to the center of the spiral fiber resin layer as the axis, the first group of spiral fiber resin layers takes 4 layers as a rotation period, and the second group of spiral...

Embodiment 2

[0060] Example 2 discloses a fiber composite material imitating the structure and function of lobster cuticle. The bionic arrangement structure fiber composite material of the present invention is derived from such as figure 1 The non-linear rotation angle helical fiber structure of the cuticle of the lobster is shown, and the bionic fiber arrangement structure shown in Figure 3 is obtained by design, wherein: in Figure 3, the rotation angle y of the helical fiber resin layer satisfies the helical-increasing function b=±10° and ±15° in this example. The high-strength and anti-crack fiber composite material of the bionic layout structure is formed by stacking helical fiber resin layers according to the helical angle of the helical-increasing function.

[0061] Wherein, taking the center line perpendicular to the center of the spiral fiber resin layer as the axis, the first group of spiral fiber resin layers takes 4 layers as a rotation period, and the second group of spiral f...

Embodiment 3

[0064] Example 3 discloses a fiber composite material imitating the structure and function of lobster cuticle. The bionic arrangement structure fiber composite material of the present invention is derived from such as figure 1 The non-linear rotation angle helical fiber structure of the cuticle of the lobster is shown, and the bionic fiber arrangement structure shown in Figure 4 is obtained by design, wherein: in Figure 4, the rotation angle z of the helical fiber resin layer satisfies the helix-exponential function z i =c i (1≤i≤6, 2≤c≤3, i is an integer, zi=0), c=2 and 3 in this example. The high-strength and anti-crack performance fiber composite material of the bionic layout structure is formed by laying up helical fiber resin layers according to the helical-exponential function helical angle.

[0065] Wherein, taking the center line perpendicular to the center of the spiral fiber resin layer as the axis, the first group of spiral fiber resin layers takes 4 layers as a r...

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Abstract

The invention discloses a fiber composite material imitating the structure and function of lobster cuticle. The fiber composite material is based on the non-linear spiral arrangement structure of lobster cuticle, and is formed by spiral laying of fiber resin layers. The spiral fiber resin layer is laid along the The central axis is stacked alternately according to the nonlinear rotation angle, wherein the number of helical fiber resin layers in the nth group is less than the number of helical fiber resin layers in the n+1th group, n≥1, and n is an odd number. The fiber composite material imitating the structure and function of the lobster cuticle of the present invention, imitating the nonlinear fiber arrangement structure of the lobster cuticle, can well resist the shear force suffered by the fiber composite material. Due to the nonlinear spiral arrangement of the fibers, adjacent layers The direction of the cracks will change, improving the impact resistance and crack resistance of the structure.

Description

technical field [0001] The invention relates to composite material technology in the field of new materials, in particular to a fiber composite material imitating the structure and function of lobster cuticle. Background technique [0002] With the rapid development of aerospace and automotive technology, the requirements for materials with light weight and crack resistance are getting higher and higher. Among them, fiber composite materials have the characteristics of light weight and good mechanical properties, and are more and more widely used in various modern engineering technology fields. [0003] Due to the simple laying structure of traditional fiber composite materials, compared with metal materials, it is difficult to find effective ways to improve their crack resistance, and their strength is poor. However, vehicles with higher speeds such as automobiles and airplanes often require higher crack resistance. Therefore, how to reduce the weight of fiber composite m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B5/02B32B5/26B32B27/06B32B27/12
CPCB32B5/02B32B5/26B32B27/06B32B27/12B32B2307/558B32B2605/08B32B2605/18
Inventor 韩奇钢史明狄韩志武
Owner JILIN UNIV
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