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

Method and device for wedging test of fracture performance of metallic materials

A technology of fracture performance and metal materials, applied in the direction of applying stable tension/pressure to test the strength of materials, etc., to achieve the effects of saving test materials, convenient production, and clear principles

Inactive Publication Date: 2015-10-14
SOUTHWEST JIAOTONG UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technical solution cannot be used for the fracture performance detection of small-sized metal components due to the design of the force transmission plate with rollers

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
  • Method and device for wedging test of fracture performance of metallic materials
  • Method and device for wedging test of fracture performance of metallic materials
  • Method and device for wedging test of fracture performance of metallic materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Below in conjunction with accompanying drawing, method and structure of the present invention are described in further detail

[0029] The technical scheme adopted by the present invention includes three parts, namely a sample with a special configuration design, a loading device and a theoretical system based on wedge loading.

[0030] (1) Specimen configuration suitable for wedge loading

[0031] The sample used for the technical solution of the present invention is a C-shaped ring sample ( image 3 ), with a symmetrical loading hole 401, an initial crack notch 402, and a knife edge 403 for measuring the opening displacement of the sample.

[0032] The distance between the knife edges 403 can be designed according to the gauge length of the displacement meter.

[0033] (2) Loading device

[0034] The loading device consists of a wedge-shaped loading head ( Figure 5 ), force transmission cotter pin ( Image 6 with Figure 7 ) and support base ( Figure 8 ) cons...

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 metal material fracture property wedge testing method and a metal material fracture property wedge testing device. A force-transmission cotter pin (200) acts on a wedge-shaped loading head (100), a vertical load is applied, is converted into a horizontal load and then is transmitted to a C-shaped ring sample (400); a loading device consists of the wedge-shaped loading head (100), the force-transmission cotter pin (200) and a supporting base (300). The loading mode is changed to realize the fracture property test of metal constructions with small sizes, the test effect is ideal, the structure is simple, the production is convenient, and the method can be used for the fracture property test of metal constructions with big sizes and can realize the effects of saving test materials and reducing experiment cost.

Description

technical field [0001] The invention belongs to a material testing device, in particular to the field of a wedging test method for the fracture performance of a metal material and the manufacturing of the device. Background technique [0002] Fracture performance is an important mechanical performance parameter to measure the fracture resistance behavior of components, and plays a vital role in the structural integrity assessment of engineering components. For structural parts containing type I open cracks, the traditional method to obtain their fracture properties is to use standard fracture specimens such as compact tension or unilateral crack bending to test by tensile or three-point bending loading methods. Due to the configuration characteristics of the sample, the size of this type of standard fracture sample is usually large, so that the size of the component to be tested is required to be correspondingly large, so that the fracture performance of the component can be...

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): G01N3/08
Inventor 包陈蔡力勋但晨
Owner SOUTHWEST JIAOTONG 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