Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for guiding preparation of glass fiber grid

A technology of glass fiber grid and glass fiber, which is applied in the field of guiding the preparation of glass fiber grid, can solve the problems such as the inability to guide the preparation of glass fiber grid, and achieve the effect of preventing reflection cracks, reducing preparation cost, and high precision

Active Publication Date: 2020-06-09
CHANGAN UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the influence of the composition of the glass fiber grid material and the weaving method on its anti-reflective effect has not been considered in the relevant research at present. Only a fixed orthogonal weaving grid structure is used, and the influence of various factors on the reflective cracks has not been quantitatively studied. Guidance on the preparation of glass fiber grids has little significance in prolonging the service life of pavement

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for guiding preparation of glass fiber grid
  • Method for guiding preparation of glass fiber grid
  • Method for guiding preparation of glass fiber grid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Embodiment 1: Optimization of glass fiber elastic modulus

[0066] Based on the values ​​of material parameters in Table 1, the influence of changes in the elastic modulus and volume fraction of glass fibers and coating materials on the anti-reflection effect of glass fiber grids was studied by the control variable method. Taking the elastic modulus of glass fiber as an example, change the elastic modulus of glass fiber and solve the engineering constant of the fiber bundle. The results are shown in Table 3. And according to the weaving method in Table 2, the finite element model of the glass fiber grid layer with a fiber bundle spacing of 12.7mm and a weaving angle of 90° was established. The results of the engineering constants are shown in Table 4.

[0067] table 3

[0068]

[0069] Table 4

[0070]

[0071] The solution results of the engineering constants of the glass fiber grid are set through the ABAQUS finite element software, and the loading times of ea...

Embodiment 2

[0075] Embodiment 2: the optimization of weaving method

[0076] The parameters of the constituent materials are shown in Table 1. First, the engineering constants of the fiber bundles are obtained through the above steps, and the calculation results are shown in Table 6.

[0077] Table 6

[0078]

[0079] ① Fiber bundle weaving density

[0080] The distance between adjacent fiber bundles is changed to study the influence of fiber bundle weaving density on the anti-reflection effect of glass fiber grids. The single-layer plate models with different fiber bundle spacings are established and combined with each other. The schematic diagrams of glass fiber grids with different weaving densities are shown in Figure 5(a), Figure 5(b), Figure 5(c) and Figure 5(d). The calculation results of engineering constants are shown in Table 7.

[0081] Table 7

[0082]

[0083] The solution results of the engineering constants of the glass fiber grid are set through the ABAQUS finite...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for guiding preparation of a glass fiber grid, which is characterized in that finite element software is utilized to optimize raw materials and a weaving method of theglass fiber grid so as to guide the preparation of the glass fiber grid. The method specifically comprises the following steps: establishing a fiber bundle and glass fiber grating layer multi-scale model, and considering the influence of material composition on a fiber bundle engineering constant and the influence of a fiber bundle weaving method on a glass fiber grating layer engineering constant; then establishing a finite element model for paving different glass fiber grating pavement structures, and estimating the reflection crack life of the finite element model; and finally, guiding thepreparation of the glass fiber grid by comparing calculation results. According to the method, the anti-reflection effect of the glass fiber grating can be estimated through a numerical analysis method, so that the preparation cost of the glass fiber grating is reduced on the premise of ensuring enough reflection crack prevention capability.

Description

technical field [0001] The invention belongs to the field of road traffic, and in particular relates to a method for guiding the preparation of glass fiber grids. Background technique [0002] Due to the inherent characteristics of semi-rigid base asphalt pavement, cracks such as temperature shrinkage and dry shrinkage will inevitably occur. Under the action of traffic load and temperature stress, the cracks develop upward, forming reflections corresponding to the cracks in the base layer on the top of the surface layer. crack. Under the influence of environmental factors, cracks continue to develop, destroying the integrity of the pavement, causing various diseases on the pavement, reducing the service life of the pavement, shortening the maintenance interval, and increasing the maintenance cost of the road. [0003] There are many measures to prevent and control reflective cracks. Among them, the glass fiber grid has a high elastic modulus and a small elongation at break,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23
CPCY02T90/00
Inventor 张洪亮孙文圃白雨瓒康浩楠李永和
Owner CHANGAN UNIV