Short Communications | Challenge Journal of Structural Mechanics

Research of the non-uniform strain and displacement fields in solids with concentrators with the use of the DIC technique

Elena M. Spaskova
Elena M. Spaskova * Center of Experimental Mechanics, Perm National Research Polytechnic University, 614990 Perm, Russia
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Abstract


This work focuses on analyzes the non-uniform strain fields in the area of stress concentration and study the limiting stress-strain state of the material in the test samples with different geometry concentrators with the use of the measuring system non-contact three-dimensional digital optical system Vic-3D. The research included tensile mechanical tests on flat samples with a hole research of the damage and failure processes of materials.


Keywords


digital image correlation; limiting stress-strain state; digital optical systems; non-uniform strain fields

References


Schreier H, Orteu JJ, Sutton MA (2009). Image Correlation for Shape, Motion and Deformation measurements. Basic Concepts, Theory and Applications, Springer.

http://dx.doi.org/10.1007/978-0-387-78747-3

Tretyakova TV, Spaskova EM (2013). Experimental study of limit stress-strain state quasi-brittle material using correlation techniques digital images. PNRPU Mechanics Bulletin, 2, 186-198.

Tretyakova TV, Wildemann VE (2014). Study of spatial-time inhomogeneity of serrated plastic flow Al-Mg alloy: using DIC technique. Fracture and Structural Integrity, 27, 83-97.

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Peer-review under responsibility of the organizing committee of ICEM17.

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