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

Fabric one-way surface permeability testing device and testing method

A fiber fabric and testing method technology, applied in the direction of permeability/surface area analysis, measuring device, suspension and porous material analysis, etc., can solve problems such as inhomogeneity of fiber preformed permeability

Active Publication Date: 2015-04-01
SHANDONG UNIV
View PDF4 Cites 0 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
  • Fabric one-way surface permeability testing device and testing method
  • Fabric one-way surface permeability testing device and testing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0037] The fiber fabric unidirectional 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, the second piezoelectric sensor 5. The third piezoelectric sensor 6, the fourth piezoelectric sensor 7, and the fifth piezoelectric sensor 8 are linearly distributed on the lower mold in turn, and the fiber fabric 9 is placed in the mold cavity surrounded by the mold cavity thickness support 3, and covers the second piezoelectric sensor. On a piezoelectric sensor 4, a second piezoelectric sensor ...

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 fabric one-way surface permeability testing device. The fabric one-way surface permeability testing device comprises an upper die, a lower die, a die cavity thickness support and a piezoelectric transducer. The invention also discloses a testing method of a fabric one-way surface permeability. The method comprises the following steps of: carrying out a preparation step before injection; carrying out an injection step; and measuring test data, and calculating permeability. According to the invention, the testing method can selectively analyze the influence of a multilevel structure, multiple type unit cells and permutation and combination manners on prefabricated part permeability spatial distribution, and can establish a mathematical model of the permeability as well as relevance of distribution and structure; and composite material infiltration defect formation mechanism and rule are revealed, infiltration defect formation criterion and control method are developed, thus the composite material is promoted to be applied and popularized in the fields of aerospace, automobile, construction and wind power in China.

Description

technical field [0001] The invention relates to the field of material testing, in particular to a testing device and testing method for unidirectional 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 ma...

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 Patents(China)
IPC IPC(8): G01N15/08
Inventor 贾玉玺董抒华王照静
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