Static failure load predictions in notched steel components using a combined experimental-numerical approach

Michal Jan Smolnicki (Department of Mechanics, Materials Science and Engineering, Politechnika Wroclawska, Wroclaw, Poland)
Michal Ptak (Department of Mechanics, Materials Science and Engineering, Politechnika Wroclawska, Wroclaw, Poland)
Grzegorz Lesiuk (Department of Mechanics, Materials Science and Engineering, Politechnika Wroclawska, Wroclaw, Poland)

International Journal of Structural Integrity

ISSN: 1757-9864

Publication date: 4 December 2017

Abstract

Purpose

The combined numerical-experimental approach has been presented. The purpose of this paper is to determine the critical rupture load of the notched components based on the cohesive zone modeling (CZM).

Design/methodology/approach

The 42CrMo4 steel (in normalized state) state has been tested and modeled using an eXtended finite element method (xFEM) philosophy with the CZM approach. In order to validate the numerically obtained critical load forces the experimental verification was performed.

Findings

The critical loads were determined for various notch configurations. The numerical and experimental values were compared. Based on this, a good agreement between experimental and numerical data is achieved. The relative error does not exceed 7 percent.

Practical implications

The presented procedure and approach is effective and simple for engineering applications. It is worth to underline that the obtained critical load values for notched components require only the static tensile test results and implementation of the presented route in numerical FEM, xFEM environment.

Originality/value

The presented methodology is actual and still developed. The scientific and engineering value of the presented numerical procedure is high.

Keywords

Acknowledgements

This work was supported by the Wroclaw University of Science and Technology project No. 0402/0112/16(K1010). Calculations were carried out using resources provided by Wroclaw Centre for Networking and Supercomputing (http://wcss.pl), Grant No. 447.

Citation

Smolnicki, M.J., Ptak, M. and Lesiuk, G. (2017), "Static failure load predictions in notched steel components using a combined experimental-numerical approach", International Journal of Structural Integrity, Vol. 8 No. 6, pp. 683-693. https://doi.org/10.1108/IJSI-05-2017-0032

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Publisher

:

Emerald Publishing Limited

Copyright © 2017, Emerald Publishing Limited

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