Macroscopic and Mesoscopic Large Deformation Measurement Methods for Metal Materials

Cai Ping Liu; Qing Quan Duan

doi:10.4028/www.scientific.net/AMR.146-147.1769

Paper Titles

The Effect of Minimal Quantity Lubrication (MQL) on the Surface Roughness of Titanium Alloy Ti-6Al-4V ELI in Turning Process
p.1750

Preparation and Photoactivity of Titanium Dioxide-Coated Carbon Felt Using Supercritical Carbon Dioxide
p.1754

Low Frequency Mechanical Spectroscopy of High Damping Mg-3wt.%Ni Alloy
p.1761

Icosahedral Quasicrystal Grains Growth and Evolution in Mg-Zn-Y
p.1765

Macroscopic and Mesoscopic Large Deformation Measurement Methods for Metal Materials
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In Situ Mg₂Si Reinforced Mg Alloy Synthesized in Mg-SiO₂ System
p.1775

Very High Cycle Fatigue Behavior of Carbon Manganese Steels
p.1780

Mathematical Model of Relation between Microstructure and the Yield Strength of High Carbon Steel Wire Rods
p.1784

Cooling by the Sine Function to Produced Semi-Solid Aluminum Alloys
p.1788

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 146-147Macroscopic and Mesoscopic Large Deformation...

Macroscopic and Mesoscopic Large Deformation Measurement Methods for Metal Materials

Abstract:

The stress-strain curve in the large plastic deformation process is always not available due to the strain gauge deficiencies in large deformation measurement. Considering this problem, digital marker identification technique is used to measure large deformation of Steel Q235 with images taken by with charge-coupled device. Then together with the deformation measured by traditional stain gauge at small deformation stage, the total stress and strain curve is obtained at macroscale. The mesoscopic deformation is measured by a material testing system assembled with scanning electronic microscope. The images from the initial stage to the rupture stage are captured synchronously. What’s more, using the grid method, the strain and rotation in rational mechanics is analyzed.

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Periodical:

Advanced Materials Research (Volumes 146-147)

Pages:

1769-1774

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.146-147.1769

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Online since:

October 2010

Authors:

Cai Ping Liu, Qing Quan Duan

Keywords:

Digital Marker Identification Technique, Ductile Failure, Finite Strain, Grid Method, Large Deformation, Rotation

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