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Comparison Study of Internal Stress Measured by Diffraction Mapping and Calculation Using FEM

Authors :
Ondrej Milkovič
Štefan Michalik
Gaurav Mohanty
Jean-Marc Breguet
Juri Wehrs
Johann Michler
Christina Krywka
Jana Gamcová
Dušan Németh
Jozef Bednarcik
H. Franz
Pavol Sovák
Source :
Key Engineering Materials. 784:120-123
Publication Year :
2018
Publisher :
Trans Tech Publications, Ltd., 2018.

Abstract

The measuring of internal stress has not only a great scientific aspect, but is particularly important for nondestructive description of component or products in industry. It is expected that exceeding of local mechanical limits in the material can have catastrophic consequences. In this paper is mapped the deformation field of amorphous material under the nanoindenter tip using diffraction in Debye-Scherrer geometry. Using the FEM analysis, it was modeled the deformation field in such material. There is a great match in between measured and calculated data. The result is pointing out on large limits of internal stresses measuring by conventional standard methods.

Details

ISSN :
16629795
Volume :
784
Database :
OpenAIRE
Journal :
Key Engineering Materials
Accession number :
edsair.doi...........5ab0b95a960457f31becfdb52f0b38ea
Full Text :
https://doi.org/10.4028/www.scientific.net/kem.784.120