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

Compact device for testing interfacial shear strength of composite material and method for testing interfacial shear strength of composite material through device

A technology of interfacial shear strength and composite materials, which can be used in measuring devices, using stable tension/pressure to test the strength of materials, analyzing materials, etc. The device is large in size and difficult to integrate, so as to achieve the effect of convenient disassembly, small size and high precision

Inactive Publication Date: 2016-05-04
HARBIN INST OF TECH
View PDF5 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the only existing micro-debonding test device that can quantitatively measure the pure interface strength of the actual composite material sample to be tested is too large to be integrated in a low-temperature environment cavity, and cannot be used to measure low-temperature environments. In order to solve the problem of interfacial shear strength of composite materials, a compact composite material interfacial shear strength testing device and a method for testing composite material interfacial shear strength using it are provided

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
  • Compact device for testing interfacial shear strength of composite material and method for testing interfacial shear strength of composite material through device
  • Compact device for testing interfacial shear strength of composite material and method for testing interfacial shear strength of composite material through device
  • Compact device for testing interfacial shear strength of composite material and method for testing interfacial shear strength of composite material through device

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0027] Embodiment 1: This embodiment is a compact composite material interface shear strength test device including a fixed base 1, a micro-tensile testing system and a droplet clamping system;

[0028] The micro-tensile testing system includes an x-direction piezoelectric ceramic displacement platform 2, a micro-stress sensor 3, a first fiber clamp 4 and a second fiber clamp 7;

[0029] The droplet clamping system includes a first y-direction piezoelectric ceramic displacement platform 5, a second y-direction piezoelectric ceramic displacement platform 10, a first micro-cutter 6 and a second micro-cutter 9;

[0030] The x-direction piezoelectric ceramic displacement platform 2, the first y-direction piezoelectric ceramic displacement platform 5, the second y-direction piezoelectric ceramic displacement platform 10, the first fiber clamp 4 and the second fiber clamp 7 are respectively installed on the fixed base seat 1;

[0031] One end of the micro-stress sensor 3 is connect...

specific Embodiment approach 2

[0038] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the x-direction piezoelectric ceramic displacement platform 2 can drive the first fiber clamp 4 to move along the x-axis direction, and the micro-stress sensor 3 is used to measure the x-axis stress value. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0039] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the first y-direction piezoelectric ceramic displacement platform 5 and the second y-direction piezoelectric ceramic displacement platform 10 can drive the first micro The blades of the cutter 6 and the second micro cutter 9 move along the y-axis direction. Other steps are the same as those in Embodiment 1 or 2.

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
Droplet diameteraaaaaaaaaa
Diameteraaaaaaaaaa
Lengthaaaaaaaaaa
Login to View More

Abstract

Disclosed are a compact device for testing the interfacial shear strength of a composite material and a method for testing the interfacial shear strength of the composite material through the device. The invention relates to the device and method for testing the interfacial shear strength of a composite material. An object of the invention is to solve the problems that a conventional micro-debonding test device which is unique for pure quantitative detection of the interfacial shear strength of an actual to-be-tested composite material sample is hard to be integrated in a low-temperature environment chamber because of the over size and cannot be used for testing the interfacial shear strength of a composite material in a low-temperature environment. The device comprises a fixed pedestal, a micro-extension test system, and a microsphere holding system. The method comprises: 1, preparation of a sample for an interfacial shear strength test; 2, interfacial shear strength test; and 3, calculation of the interfacial shear strength tau of the composite material according to a formula defined in the description. According to the invention, the compact device for testing the interfacial shear strength of a composite material and the method for testing the interfacial shear strength of the composite material through the device are obtained.

Description

technical field [0001] The invention relates to a composite material interface shear strength testing device and a method for testing the composite material interface shear strength. Background technique [0002] With the rapid development of low-temperature fields such as aerospace, large cryogenic engineering, superconducting technology, and medical services, composite materials are more and more widely used in low-temperature environments, including various structures, supports, and connections used in low-temperature environments. At the same time, various stringent requirements are put forward for the mechanical properties of these structural parts. For example, in the space environment, the temperature changes greatly, and when the satellite is running on the side of the earth facing the sun and the side facing away from the sun , it is required that the spacecraft structure has excellent mechanical properties and thermal shock resistance in the range of 90K-600K; 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
IPC IPC(8): G01N3/18G01N3/04
CPCG01N3/18G01N3/04G01N2203/0096G01N2203/04
Inventor 郝立峰王琦王荣国赫晓东
Owner HARBIN INST OF TECH
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