Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Apparatus and method for testing mechanical properties of fiber-reinforced composite materials during degradation

A composite material and fiber-reinforced technology, which is applied in the direction of measuring devices, applying stable tension/pressure to test the strength of materials, and analyzing materials, can solve the problem of insufficient design of environmental factors for fiber-reinforced composite materials and research work on the degradation of fiber-reinforced composite materials Limited, material mechanical properties decline and other issues

Active Publication Date: 2020-10-23
NORTHEASTERN UNIV LIAONING
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its own structural problems are also very prominent, especially under the influence of excitation and external environment, it will degrade and lead to the decline of the mechanical properties of the material. The size of its influence is particularly important
[0007] For a long time, the research work on the degradation of fiber reinforced composite materials has been very limited. The main reason is that the excitation method is difficult to solve
In addition, the previous test benches were not comprehensive enough for the environmental factors of fiber reinforced composites and could not effectively combine vibration factors, environmental factors and mechanical tests into a mechanism

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
  • Apparatus and method for testing mechanical properties of fiber-reinforced composite materials during degradation
  • Apparatus and method for testing mechanical properties of fiber-reinforced composite materials during degradation
  • Apparatus and method for testing mechanical properties of fiber-reinforced composite materials during degradation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0041] A device for testing the mechanical properties of fiber-reinforced composite materials when degraded, including a moving gear shifting exciter 1, a continuously variable transmission 2, a fixture 3, a fixed frame 4, a support 5, a bottom plate 6, a ball screw 7, a transmission system 8, Multifunctional environment box 9, ventilation device 10, vibration-absorbing fixed plug 11, screw drive plate 12, main motor 13, auxiliary motor 14, vibrating needle device 15, composite beam 16;

[0042] The lower end of the fixed frame 4 is fixed by a support 5, the bottom of the support has a bottom plate 6 connected to the ground through anchor bolts, the ball screw 7 is connected to the fixed frame 4 by threads; the transmission system 8 is supported by the fixed frame 4 , is transmitted to the ball screw 7 through the main motor 13,...

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

PropertyMeasurementUnit
lengthaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

A device and method for testing mechanical properties of a fiber reinforced composite material during degradation, relating to the technical field of test apparatuses. The device comprises a moving gearshift vibration exciter (1), a continuously variable transmission (2), a fixture (3), a fixing frame (4), a support base (5), a bottom plate (6), a ball screw (7), and a transmission system (8), a multifunctional environmental cabinet (9), a ventilation means (10), a damping fixing plug (11), a screw transmission plate (12), a main motor (13), an auxiliary motor (14), a vibration pin means (15), and a composite beam (16). The device can stretch and vibrate the fiber reinforced composite beam (16) and introduce an environmental factor, which include five factors in all, i.e., vibration, temperature, humidity, air oxygen content, and ultraviolet intensity. A single load or environmental factor can be loaded, and the above several factors can also be arbitrarily composited. Then the compositing is performed by an environmental factor maintenance mechanism adjusted according to requirements and by means of stretching and vibration. Moreover, the thermal environment provided by the multifunctional environmental cabinet (9) has a temperature gradient.

Description

technical field [0001] The invention relates to the technical field of testing equipment, in particular to a device and method for testing the mechanical properties of fiber-reinforced composite materials when degraded, and a device capable of measuring the mechanical properties of fiber-reinforced composite materials when degraded. Background technique [0002] Fiber-reinforced composite materials have high specific strength, high specific modulus, good thermal stability, and certain damping and vibration reduction capabilities, so they are widely used in important fields such as aviation, aerospace, ships, and weapon industries. At present, there are a large number of various composite structural parts made of this type of material in engineering practice, such as composite wings used in helicopters and jet aircraft, high-temperature turbine blades made of fiber / ceramic matrix composites in aero-engines, etc. . Because composite materials and structures are often in a the...

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): G01N3/02G01N3/18
CPCG01N3/02G01N3/18
Inventor 李晖周星辰罗忠任利聪张培谭龙飞张文彬邵震
Owner NORTHEASTERN UNIV LIAONING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
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