DEFORMATION DISTRIBUTION DURING MECHANICAL TESTS OF CYLINDRICAL STEEL ROD USING DIGITAL IMAGE CORRELATION-Reference-Cited by-同舟云学术

DEFORMATION DISTRIBUTION DURING MECHANICAL TESTS OF CYLINDRICAL STEEL ROD USING DIGITAL IMAGE CORRELATION

Published:2018-10-30 Issue:5 Volume: Page:101-110
ISSN:2310-0044
Container-title:Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture
language:
Short-container-title:Vestnik Tomskogo gosudarstvennogo arhitekturno-stroitelnogo universiteta

Author:

Plyaskin A. S.¹,Klopotov A. A.²,Potekaev A. I.³,Koshko B. O.¹

Affiliation:

1. Tomsk State University of Architecture and Building

2. Tomsk State University of Architecture and Building National Research Tomsk State University

3. National Research Tomsk State University

Abstract

This paper presents in situ investigations of the deformation field distribution during compression of cylindrical steel rods at meso and macroscale levels using digital image correlation. The distribution of localized deformation areas on the surface is studied during compressive tests of cylindrical steel rods at stages II and III. It is shown that the change in the deformation patterns on the surface during the compression of cylindrical steel rods correlates with the stress-strain curves and reflects the change in the deformation mechanisms. A study of the dynamic parameters of compressed cylindrical rods shows that with increasing compressive stresses a nonlinear increase is observed in the eigen-frequency of the samples, which correlates with stages on the deformation curve.

Publisher

Tomsk State University of Architecture and Building

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