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.
Highlights
Для цитирования: Пляскин А.С., Клопотов А.А., Потекаев А.И., Кошко Б.О
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
Summary
Для цитирования: Пляскин А.С., Клопотов А.А., Потекаев А.И., Кошко Б.О. Исследование распределения деформаций в цилиндрическом стальном стержне на основе механических испытаний методом корреляции цифровых изображений // Вестник Томского государственного архитектурно-строительного университета. 2018. Пляскин А.С., Клопотов А.А., Потекаев А.И., Кошко Б.О., 2018 For citation: Plyaskin A.S., Klopotov A.A., Potekaev A.I., Koshko B.O. Issledovanie raspredeleniya deformatsii v tsilindricheskom stal''nom stezhne na osnove mekhanicheskikh ispytanii metodom korrelyatsii tsifrovykh izobrazhenii [Deformation distribution during mechanical tests of cylindrical steel rod using digital image correlation]. Анализ зависимости = f (ε), полученной при сжатии цилиндрического образца, позволил выделить три стадии
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