Mesoscale measurement of strains by analyzing optical images of the surface of loaded solids

Abstract

An algorithm for estimating the strains in solids at the mesoscale level, which is based on constructing fields of displacement vectors and calculating strain components, is studied and tested. Verification of the method is performed by comparing the analytically calculated strain components with experimental data obtained on the basis of model images and images recorded by a TOMSC optical TV measurement system during tension of polymer samples. The estimates of the strain components obtained by a correlation analysis of images are shown to be in good agreement with the results of analytical calculations for known loading parameters and sizes of the images under analysis. The results of the study confirm that the TOMSC system can be used to estimate local strains by processing images of the surface of loaded samples of materials.

Original language	English
Pages (from-to)	905-910
Number of pages	6
Journal	Journal of Applied Mechanics and Technical Physics
Volume	47
Issue number	6
DOIs	https://doi.org/10.1007/s10808-006-0131-z
Publication status	Published - 1 Nov 2006

Keywords

Correlation analysis
Field of displacement vectors
Image processing
Strain

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1007/s10808-006-0131-z

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title = "Mesoscale measurement of strains by analyzing optical images of the surface of loaded solids",

abstract = "An algorithm for estimating the strains in solids at the mesoscale level, which is based on constructing fields of displacement vectors and calculating strain components, is studied and tested. Verification of the method is performed by comparing the analytically calculated strain components with experimental data obtained on the basis of model images and images recorded by a TOMSC optical TV measurement system during tension of polymer samples. The estimates of the strain components obtained by a correlation analysis of images are shown to be in good agreement with the results of analytical calculations for known loading parameters and sizes of the images under analysis. The results of the study confirm that the TOMSC system can be used to estimate local strains by processing images of the surface of loaded samples of materials.",

keywords = "Correlation analysis, Field of displacement vectors, Image processing, Strain",

author = "Lyubutin, {P. S.} and Panin, {S. V.}",

year = "2006",

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doi = "10.1007/s10808-006-0131-z",

language = "English",

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journal = "Journal of Applied Mechanics and Technical Physics",

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T1 - Mesoscale measurement of strains by analyzing optical images of the surface of loaded solids

AU - Lyubutin, P. S.

AU - Panin, S. V.

PY - 2006/11/1

Y1 - 2006/11/1

N2 - An algorithm for estimating the strains in solids at the mesoscale level, which is based on constructing fields of displacement vectors and calculating strain components, is studied and tested. Verification of the method is performed by comparing the analytically calculated strain components with experimental data obtained on the basis of model images and images recorded by a TOMSC optical TV measurement system during tension of polymer samples. The estimates of the strain components obtained by a correlation analysis of images are shown to be in good agreement with the results of analytical calculations for known loading parameters and sizes of the images under analysis. The results of the study confirm that the TOMSC system can be used to estimate local strains by processing images of the surface of loaded samples of materials.

AB - An algorithm for estimating the strains in solids at the mesoscale level, which is based on constructing fields of displacement vectors and calculating strain components, is studied and tested. Verification of the method is performed by comparing the analytically calculated strain components with experimental data obtained on the basis of model images and images recorded by a TOMSC optical TV measurement system during tension of polymer samples. The estimates of the strain components obtained by a correlation analysis of images are shown to be in good agreement with the results of analytical calculations for known loading parameters and sizes of the images under analysis. The results of the study confirm that the TOMSC system can be used to estimate local strains by processing images of the surface of loaded samples of materials.

KW - Correlation analysis

KW - Field of displacement vectors

KW - Image processing

KW - Strain

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