On the meso-macro scale deformation of low carbon steel

Suraj Ravindran, Behrad Koohbor, Addis Kidane

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

The multiscale deformation response of low carbon steel is investigated. The meso macro scale displacement strain fields for specimen subjected to pure tension are easured using in-situ multiscale digital image correlation technique. The specimen is specked ith different scale pattern ranging from 5 to 500 μm size. The smallest scale 5 μm speckles are sed for local meso-scale deformation measurement. In this case an optical microscope is used o record the local information within 1 μm square field of view. On the other hand the larger ize 500 μm speckles are used to measure the continuum level deformation. In this case two igital cameras with 5 megapixel resolution are used in 3D arrangement by considering the ntire width of the specimen inside the field of view. Both the optical microscope the digital amera systems are triggered simultaneously to acquire the deformation at the same time scale. he displacement strain fields are extracted using digital image correlation. The effect of local eformation on the overall displacement strain of low carbon steel is presented by comparing ith the macro scale deformation strain fields. Furthermore microstructure images are obtained y optical microscope used for the analysis of local strain field coupled with the strain field rom digital image correlation.

Original languageEnglish (US)
Title of host publicationAdvancement of Optical Methods in Experimental Mechanics - Proceedings of the 2014 Annual Conference on Experimental and Applied Mechanics
EditorsHelena Jin, Luciano Lamberti, Sanichiro Yoshida, Cesar Sciammarella
PublisherSpringer New York LLC
Pages409-414
Number of pages6
ISBN (Print)9783319069852
DOIs
StatePublished - 2015
Externally publishedYes
EventAnnual Conference on Experimental and Applied Mechanics, 2014 - Greenville, United States
Duration: Jun 2 2014Jun 5 2014

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
Volume3B
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652

Conference

ConferenceAnnual Conference on Experimental and Applied Mechanics, 2014
Country/TerritoryUnited States
CityGreenville
Period6/2/146/5/14

Bibliographical note

Funding Information:
This work is partially supported by NASA grant No. 21-NE-USC_Kidane-RGP is gratefully acknowledged.

Publisher Copyright:
© The Society for Experimental Mechanics, Inc. 2015.

Keywords

  • Digital image correlation
  • Low carbon steel
  • Multiscale experiments
  • RVE
  • Subset

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