Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Device and method for testing intrinsic permeability of radial surface of fiber fabric

A fiber fabric and testing device technology, which is applied in the direction of measuring device, permeability/surface area analysis, suspension and porous material analysis, etc., can solve the problems of uneven permeability of fiber preforms and other issues

Active Publication Date: 2012-12-05
SHANDONG UNIV
View PDF4 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, infiltration defects such as dry spots and pores often appear in its products, and their formation is closely related to the inhomogeneity of the permeability of the fiber preform

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
  • Device and method for testing intrinsic permeability of radial surface of fiber fabric
  • Device and method for testing intrinsic permeability of radial surface of fiber fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] The fiber fabric radial in-plane permeability testing device of this embodiment includes an upper mold 1, a lower mold 2, a mold cavity thickness support 3, a first piezoelectric sensor 4, a second piezoelectric sensor 5, and a third piezoelectric sensor 6 , the fourth piezoelectric sensor 7, the fifth piezoelectric sensor 8; the cavity thickness support 3 is pressed between the upper mold 1 and the lower mold 2; the first piezoelectric sensor 4 is located at the center of the lower mold 1, and the second Two piezoelectric sensors 5, the third piezoelectric sensor 6, the fourth piezoelectric sensor 7, and the fifth piezoelectric sensor 8 are evenly distributed on the circle with the first piezoelectric sensor 4 as the center of the circle (the second piezoelectric sensor 5, the fifth piezoelectric sensor The three piezoelectric sensors 6, the fou...

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 device for testing intrinsic permeability of a radial surface of fiber fabric. The device comprises an upper die, a lower die, a die cavity thickness bracket and a piezoelectric sensor. The invention also discloses a method for testing the intrinsic permeability of the radial surface of the fiber fabric. The method comprises the following steps: preparation before injection; injection; measurement of test data; and calculation of the permeability. According to the device and the method, the influences of a multi-layer structure of a prefabricated member, multi-type cells and the permutation-combination mode of the multi-type cells on the distribution in space of the permeability of the prefabricated member are analyzed as key points, a mathematical model with the permeability and the distribution of the permeability being related with the structure is established, the formation mechanism and rules of a permeability defect of a composite material is disclosed, a formation criterion and a control method of the permeability defect are developed and therefore the application and the popularization of the composite material in the fields of aerospace, automobiles, buildings, wind electricity and the like are promoted.

Description

technical field [0001] The invention relates to the field of material testing, in particular to a testing device and testing method for radial in-plane permeability of fiber fabrics. Background technique [0002] Under the background of the national major project of "Large Aircraft" and the development trend of "composite structure and function" in material technology, liquid molding of composite materials has attracted much attention because of its integrated, low-cost, and net-size structural parts manufacturing characteristics. However, infiltration defects such as dry spots and pores often appear in its products, and their formation is closely related to the inhomogeneity of the permeability of the fiber preform. Therefore, it is a key problem to be solved urgently to construct a correlation model between prefabricated component permeability and its distribution and multi-level structural parameters, and then accurately predict the wetting defects of composite materials....

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
IPC IPC(8): G01N15/08
Inventor 贾玉玺王照静董抒华
Owner SHANDONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com