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

Composite material compression clamp with load and environment coupling effect and using method thereof

A technology of composite materials and fixtures, applied in the direction of applying stable tension/pressure to test the strength of materials, analyzing materials, measuring devices, etc., can solve the problems that cannot be effectively carried out, service performance testing is less explored, and electronic instruments and digital displays cannot work normally. And other issues

Active Publication Date: 2020-10-20
BEIHANG UNIV
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, composite materials are gradually attracting everyone's attention. With the gradual expansion of the application field of composite materials, they are faced with a variety of service environments, and it is relatively difficult to test the service performance of composite materials under extreme environments under long-term stable compressive loads. The main difficulty is that the test of applying accurate quantitative compressive loads to composite material samples in extreme environments cannot be effectively carried out because the electronic instruments and digital displays that apply the load cannot work normally in extreme environments

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
  • Composite material compression clamp with load and environment coupling effect and using method thereof
  • Composite material compression clamp with load and environment coupling effect and using method thereof
  • Composite material compression clamp with load and environment coupling effect and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as Figure 1-5 As shown, this embodiment provides a composite material compression fixture with coupling of load and environment, which includes a fixture base 1, a holder, a spring frame 5, a long screw 2, a spring 6, a baffle 7 and a limit nut 8; The holder is used to clamp the composite material sample 10; one end of the long screw 2 is connected to the clamp base 1, the other end of the long screw 2 is provided with a thread, and the baffle 7 is arranged on the long screw At the other end of 2, the limit nut 8 is mated and connected with the thread; the spring frame 5 is a T-shaped structure, a guide hole is provided in the middle of the baffle plate 7, and both ends of the spring frame 5 are movably sleeved On the long screw 2, the spring 6 is sleeved on the tail end of the spring frame 5, and the tail end of the spring frame 5 extends into the guide hole.

[0032] The fixture base 1 is composed of a stopper 1a and a carrying platform 1b. In order to ensure that...

Embodiment 2

[0042] This embodiment provides a method for using a composite material compression fixture with a coupling effect of load and environment, including the following steps:

[0043] The composite material sample 10 is a composite material board with carbon fiber, glass fiber, aramid fiber, basalt fiber, aramid fiber, ultra-high molecular weight polyethylene fiber as reinforcement, and the thickness of the board is 0.5mm-2mm, preferably 1mm; The length of the composite material sample 10 is 75 mm-150 mm, preferably 80 mm, and the width of the composite material sample 10 is 5 mm-30 mm, preferably 15 mm. The number of composite material samples 10 in the same batch is 10 or more.

[0044] Further, five composite material samples 10 of the same batch are randomly selected for uniaxial compression performance test, and the five composite material samples 10 are compressed to fracture to calculate the ultimate compressive strength of the composite material samples 10 .

[0045] After asse...

Embodiment 3

[0064] The present embodiment relates to a test method of a composite material compression fixture using the coupling effect of load and environment specifically including the following steps:

[0065] The composite material sample 10 with aramid fiber twill fabric as the reinforcement has a length of 80 mm, a width of 15 mm and a thickness of 1 mm. Use a compression clamp to clamp the composite material sample 10 and apply compression to the spring 6 so that the load strength applied by the spring 6 to the composite material sample 10 is 40% of the ultimate compressive load of the composite material. Place the adjusted compression clamp horizontally In the salt spray test box, the salt spray solution is 5% sodium chloride solution and glacial acetic acid is added dropwise to reduce the pH value of the solution to between 3.1 and 3.3, and the sedimentation rate of the salt spray is 1 to 2ml / 80cm 2 · Between h. The test temperature is 35°C. The test duration is 7 days. After the...

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
Elastic coefficientaaaaaaaaaa
Lengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a composite material compression clamp with a load and environment coupling effect and a using method thereof, and relates to the technical field of composite material compression testing devices. The main structure of the composite material compression clamp comprises a clamp base, a holder, a spring support, a long screw rod, a spring, a separation blade and a stop nut; the holder is used for clamping a composite material sample; one end of the long screw rod is connected with the clamp base; threads are arranged at the other end of the long screw rod; the separationblade is arranged at the other end of the long screw rod; the stop nut is connected with the threads in a matched mode; the spring support is of a T-shaped structure; a guide hole is formed in the middle of the separation blade; the two ends of the spring support are arranged on the long screw rod in a sleeving mode; the spring is arranged at the tail end of the spring support in a sleeving mode;and the tail end of the spring support extends into the guide hole. Under the condition that electronic equipment is not needed, an accurate and quantitative compression load is provided for a composite material test in an extreme environment, a service simulation test that the composite material bears the compression load in various extreme environments is completed, and test conditions and stepsare automatically adjusted according to different environmental simulation requirements and different sample types.

Description

Technical field [0001] The invention relates to the technical field of composite material compression testing devices, in particular to a composite material compression fixture with a load and an environment coupling effect and a use method thereof. Background technique [0002] At present, composite materials are gradually attracting attention. With the gradual expansion of the application fields of composite materials, they are facing a variety of service environments, and the service performance test of composite materials under extreme environments with long-term stable compression loads is more researched. The main difficulty is that the electronic instruments and digital displays that apply the load cannot work normally in extreme environments, making the test of applying accurate quantitative compression loads to the composite material specimens in extreme environments unable to be effectively carried out. The compression test device can apply an accurate and quantitative ...

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): G01N3/04G01N3/14G01N3/18
CPCG01N3/04G01N3/14G01N3/18G01N2203/0019G01N2203/0035G01N2203/022G01N2203/0226G01N2203/0228G01N2203/0232G01N2203/0423
Inventor 李敏车辙王绍凯顾轶卓范燕生
Owner BEIHANG 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