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Determination of the Local Strains Near Stress Concentrators by the Digital Image Correlation Technique

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Materials Science Aims and scope

We analyze the specific features of determination of the local strains in materials in the vicinity of stress concentrators of different radii by the digital image correlation method. The dependences of the critical local strains on the spacing used for their measuring in smooth specimens and specimens with stress concentrators and fatigue cracks are established. Recommendations concerning the choice of the optimal spacing for measuring local strains are presented. The stress-strain diagrams of 65G steel are constructed on the “true-stress–local strain” coordinates.

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Authors and Affiliations

  1. Karpenko Physicomechanical Institute, Ukrainian National Academy of Sciences, Lviv, Ukraine

    Ya. L. Ivanyts’kyi, Yu. V. Mol’kov, P. S. Kun’ & T. M. Lenkovs’kyi

  2. University of Technology and Humanities, Radom, Poland

    M. Wójtowicz

Authors
  1. Ya. L. Ivanyts’kyi
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  2. Yu. V. Mol’kov
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  3. P. S. Kun’
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  4. T. M. Lenkovs’kyi
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  5. M. Wójtowicz
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Correspondence to Ya. L. Ivanyts’kyi.

Additional information

Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 50, No. 4, pp. 18–24, July–August, 2014.

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Ivanyts’kyi, Y.L., Mol’kov, Y.V., Kun’, P.S. et al. Determination of the Local Strains Near Stress Concentrators by the Digital Image Correlation Technique. Mater Sci 50, 488–495 (2015). https://doi.org/10.1007/s11003-015-9746-7

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  • DOI: https://doi.org/10.1007/s11003-015-9746-7

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