Auxiliary centering installation device for composite material track shear test

A shear test and composite material technology, which is used in the field of auxiliary centering installation devices for composite material track shear tests, can solve problems such as large cumulative error, poor installation accuracy, and trouble, so as to improve the neutrality and reduce human errors. , the effect of improving the accuracy

Active Publication Date: 2020-12-11
CHINA AIRPLANT STRENGTH RES INST
View PDF13 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is very troublesome, and due to the need to measure the distance between multiple parts and parts and the test piece, there is a large cumulative error and the installation accuracy is poor
When the axes of the two loading rods do not coincide with the axis of the V-notch section of the test piece, there will be out-of-plane bending and torsional deformation during the test, and the V-notch section of the test piece cannot show a pure shear stress state. have a great influence on the test results

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
  • Auxiliary centering installation device for composite material track shear test
  • Auxiliary centering installation device for composite material track shear test
  • Auxiliary centering installation device for composite material track shear test

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] In order to make the objectives, technical solutions and advantages of the implementation of the application clearer, the technical solutions in the implementation modes of the application will be described in more detail below with reference to the drawings in the implementation modes of the application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the present application. The embodiments described below by referring to the figures are exemplary and are intended to explain the present application, and should not be construed as limiting the present application. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the scope of protection of this application. Embodiments of the pr...

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 belongs to the field of material performance testing, and relates to an auxiliary centering installation device for a composite material track shear test. The device comprises a base (1), a rotating rod (3) and a V-shaped groove plate (5), wherein two coaxial mounting holes (41) and a loading rod for fixing a test fixture are arranged on the base (1); the rotating rod (3) is of a rotatable structure, the tail end of the rotating rod (3) is provided with a V-shaped groove plate (5), the V-shaped groove plate (5) comprises two clamping jaws (52), the clamping jaws (52) just extendinto a V-shaped notch of a test piece, the connecting line of the two clamping jaws coincides with the axis of the mounting hole (41), and therefore the test piece coincides with the test fixture. Centering installation of the test fixture and the test piece can be conveniently achieved, it is guaranteed that the central axis of the V-shaped notch part of the test piece coincides with the loadingaxis of the testing machine, the centering performance of installation of the test fixture and the test piece is improved, personal errors are reduced, and the test result precision is improved.

Description

technical field [0001] The application belongs to the field of material performance testing, in particular to an auxiliary centering installation device for composite material rail shear tests. Background technique [0002] The V-notch track shear test is currently the most important and common test method for measuring the shear performance of composite multi-directional laminates, and its corresponding test standard is ASTM D7078. The main scope of application of this test is: a) laminates composed of unidirectional fiber layers only, the laying direction can be parallel or perpendicular to the fixture track; b) balanced symmetrical laminates, the 0 layer direction can be parallel or perpendicular to the fixture track; c) laminates consisting of a single layer of fibers in fabric, weave or fiber cloth; d) randomly distributed short fiber reinforced composites. The measured test data can be used not only for production quality control and material specification formulation...

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 Applications(China)
IPC IPC(8): G01N3/04G01N3/24
CPCG01N3/04G01N3/24G01N2203/0025G01N2203/0405
Inventor 李磊王彬文程鹏飞宋贵宾杨梦粤许飞
Owner CHINA AIRPLANT STRENGTH RES INST
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap