Numerical Verification of a Full-field Deformation Analysis of a Specimen Loaded by Combined Loading

Martin Hagara^1, , Róbert Huňady¹, Pavol Lengvarský¹ and Jozef Bocko¹

¹Department of Applied Mechanics and Mechanical Engineering, Technical University of Košice, Faculty of Mechanical Engineering, Košice, Slovakia

Cite this paper:
Martin Hagara, Róbert Huňady, Pavol Lengvarský and Jozef Bocko. Numerical Verification of a Full-field Deformation Analysis of a Specimen Loaded by Combined Loading. American Journal of Mechanical Engineering. 2014; 2(7):307-311. doi: 10.12691/ajme-2-7-29

Abstract

The contribution deals with an experimental investigation of deformation fields of a specimen loaded by combined loading. The experiment was done using non-contact optical method of low-speed digital image correlation. This technique allows investigate displacement as well strain fields. The experimentally obtained results depicted in the paper in a form of color maps and graphs were verified by a numerical simulation performed in Ansys, where two types of meshing were used to demonstrate the coherence between experiment and simulation.

Keywords:
digital image correlation full-field measurement strain gauge

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References:

[1]	Sutton M., Orteu J.-J. and Schreier H., Image Correlation for Shape, Motion and Deformation Measurements - Basic Concepts, Theory and Applications, Springer Science+Business Media, LLC 2009, 321 p.
[2]	Siebert T., Splitthof K., Stecklum S. and Herbst Ch., New features in digital image correlation techniques, in: 22nd DANUBIA-ADRIA Symposium on Experimental Methods in Solid Mechanics, Parma : MONTICELLI TERME, 2005.
[3]	Kalina M., Šimčák F., Hagara M., Schrötter M. and Štamborská M., “The use of the experimental optical technique for investigation of shear strains of the samples exposed to shear stress beyond the yield point”, Procedia Engineering, Vol. 48, 264-272, 2012.
[4]	Avril S. and Pierron F., “Camfit: a virtual fields method based software”, in: XIth International Congress and Exposition, Florida, 1-6, 2008.
[5]	Štamborská M., Losertová M., Mareš V. and Horsák L., “Stress analysis in cylindrical specimens made from 34CrMo4 using DIC”, Acta Metallurgica Slovaca, Vol. 20, Issue 2, 229-235, 2014.
[6]	Štamborská M., Kvíčala M. and Losertová M., “Identification of the mechanical properties of high-strength steel using digital image correlation”, Advanced Materials Research, Vol. 980, 122-126, 2014.
[7]	Štamborská M., Fajkoš R. and Kvíčala M., “Comparing plastic strain fields and stress fields for different directions of rolling”, International Review of Mechanical Engineering, Vol. 7, Issue 7, 1384-1391, November 2013.
[8]	Trebuňa F. and Hagara M., “Experimental modal analysis performed by high-speed digital image correlation system”, Measurement, Vol. 50, 78-85, April 2014.
[9]	Trebuňa F., Huňady R., Bobovský Z. and Hagara M., “Results and experiences from the application of digital image correlation in operational modal analysis”, Acta Polytechnica Hungarica, Vol. 10, no. 5, 159-174, 2013.
[10]	Trebuňa F., Hagara M. and Huňady R., “Strain Fields Identification of Chosen Cycling Helmets Types by Their Impact Loading”, Acta Mechanica Slovaca, Vol. 16, no. 2, 22-30, 2012.
[11]	Dantec Dynamics: Q-400 - Basics of 3D Digital Image Correlation. Dantec Dynamics Technical Note, 2008.