An Evaluation of Material Properties Using EMA and FEM

Rastislav Ďuriš; Eva Labašová

doi:10.1515/rput-2016-0012

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An Evaluation of Material Properties Using EMA and FEM

Research Papers Faculty of Materials Science and Technology Slovak University of Technology

Volume 24 (2016): Issue 39 (December 2016)

By: Rastislav Ďuriš and Eva Labašová

Open Access

|Apr 2017

Abstract

The main goal of the paper is the determination of material properties from experimentally measured natural frequencies. A combination of two approaches to structural dynamics testing was applied: the experimental measurements of natural frequencies were performed by Experimental Modal Analysis (EMA) and the numerical simulations, were carried out by Finite Element Analysis (FEA). The optimization methods were used to determine the values of density and elasticity modulus of a specimen based on the experimental results.

References

1. EMORY, B.H., ZHU, W.D., 2006. Experimental Modal Analysis of Rectangular and Circular Beams. J. of STEM Education, 7(3&4), pp 80-100.
Search in Google Scholar Back to article
2. RANDALL, R.B., WHITE, B., 1987. Frequency analysis. 3rd edition. Nærum: Brüel&Kjær.
Search in Google Scholar Back to article
3. HARRIS, C.M., 1995. Shock and Vibration Handbook. 4th edition. New York: McGraw-Hill.
Search in Google Scholar Back to article
4. EWINS, D. J., 1984. Modal Testing: Theory and Practice. Research Studies. New York: John Wiley and Sons.
Search in Google Scholar Back to article
5. HASLINGER, J., NEITTAANMAKI, P., 1997. Finite Element Approximation for Optimal Shape, Material and Topology Design. 2nd edition. Chichester: John Wiley and Sons.
Search in Google Scholar Back to article
6. SÁGA, M., VAŠKO, M., KOCÚR, R., TOTH, Ľ., KOHÁR, R., 2006. Application of optimization alghoritms in mechanics of solid. Žilina: VTS.
Search in Google Scholar Back to article
7. BROCH, J. T., 1980. Mechanical Vibration and Shock Measurement. 2nd edition. Nærum: Brüel&Kjær.
Search in Google Scholar Back to article
8. KOBLAR, D., BOLTEŽAR, M., 2013. Evaluation of the frequency-dependent Young's modulus and damping factor of rubber from experiment and their implementation in a finite-element analysis. Experimental Techniques. [online]. [11-11-2013]. DOI: 10.1111/ext.1206610.1007/s40799-016-0027-7
Open DOI Search in Google Scholar Back to article
9. ANSYS Academic Research, Release 15.0, Help System, Advanced Analysis Techniques Guide, ANSYS, Inc.
Search in Google Scholar Back to article

Articles in this issue

DOI: https://doi.org/10.1515/rput-2016-0012 | Journal eISSN: 1338-0532 | Journal ISSN: 1336-1589

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Language: English

Page range: 15 - 22

Published online: Apr 4, 2017

Published in print: Dec 1, 2016

Published by: Slovak University of Technology in Bratislava

In partnership with: Paradigm Publishing Services

Publication frequency: 2 issues per year

Keywords:

experimental modal analysis,

finite element method,

material properties,

optimization procedures,

ANSYS

Related subjects:

Engineering,

Introductions and overviews,

Engineering, other

© 2017 Rastislav Ďuriš, Eva Labašová, published by Slovak University of Technology in Bratislava
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Volume 24 (2016): Issue 39 (December 2016)