Method for measuring static elasticity modulus of porous metal material

A technology of porous metal and elastic modulus, applied in the direction of applying stable tension/pressure to test material strength, mechanical solid deformation measurement, etc., can solve problems such as expensive equipment, poor synchronization and coordination of elastic deformation, and difficulty in pasting strain gauges , to achieve the effect of simple operation, accurate measurement results and low test cost

Inactive Publication Date: 2013-03-27
SHANGHAI UNIV OF ENG SCI +1
View PDF2 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The measurement results of the conventional static compression method are more accurate, but the required equipment is more expensive, and it has higher requirements for the preparation of porous metal samples
[0009] Although for the base metal, the elastic modulus can be measured by using the conventional four-point bending test device combined with the strain gauge method, but for the porous metal, the strain gauge is difficult

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 for measuring static elasticity modulus of porous metal material
  • Method for measuring static elasticity modulus of porous metal material
  • Method for measuring static elasticity modulus of porous metal material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0027] 1. Experimental equipment

[0028] a) Simply supported beam pure bending (four-point bending) experimental device. The main body of the device is CLDT-C material mechanics multifunctional electric test bench, and its structure diagram is as follows figure 1 As shown, it mainly includes a support block 1 , a loading link 2 , a base 3 , an upper loading auxiliary rod 4 , a material sample to be tested 5 , a loading handle 6 and a lower loading auxiliary rod 7 . Pure bending experiment is one of the most basic and common material mechanics (teaching) experiments. The experimental device is very simple, easy to operate, and the price is low. Most of the material mechanics laboratories of universities, scientific research institutes and related industry units There is the experimental equipment.

[0029] b) XL2188 force and strain comprehensive parameter tester.

[0030] c) Dial indicator or dial indicator.

[0031] d) Weights and hooks.

[0032] 2. Material to be tested...

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 method for measuring static elasticity modulus of a porous metal material. The method comprises the following steps of: measuring the flexibility of a simply supported beam span in different loads by utilizing a simply supported beam four-point bending testing device and adopting static step-by-step loading; subsequently establishing a relationship curve between the flexibility in the span and the loads, and calculating according to a curve slope in equations so as to obtain a single time measurement value of the static elasticity modulus of the porous metal material; and measuring for multiple times within a linear elasticity range, and taking the average value so as to obtain the static elasticity modulus of the porous metal material. The method not only has the advantages of measurement result accuracy, good repeatability, high reliability, simple equipment, low testing cost, simpleness in sample preparation and the like, but also can realize repeated loading (unloading) and multiple measurements within the linear elasticity range; the method can be carried out on a conventional material mechanics pure bending testing table, no strain gages are necessary to be adhered, and only a dialgauge (micrometer gauge) is additionally arranged; and the method is simple and easy to operate and is applicable to popularization and application.

Description

technical field [0001] The invention relates to a method for measuring the static elastic modulus of a porous metal material, which belongs to the testing technology of material mechanical properties. Background technique [0002] Elastic modulus (elastic modulus), also known as Young's modulus, refers to the ratio of the normal stress to the corresponding normal strain of the material in the elastic deformation stage, expressed in E. The elastic modulus is an important performance parameter of various engineering materials. From a macroscopic point of view, the elastic modulus is a measure of the ability of an object to resist elastic deformation; A reflection of bond strength. The elastic modulus can be regarded as an index to measure the difficulty of elastic deformation of the material. The larger the value, the greater the stress that causes the material to undergo a certain elastic deformation. [0003] Porous metal foam is a new type of metal matrix composite materi...

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): G01N3/08G01B5/30
Inventor 李培超范志毅李培绪袁勋伸
Owner SHANGHAI UNIV OF ENG SCI
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