Influence of the interphase between laser-cladded metal layer and steel substrate on fatigue propagation of a short edge crack

Lucie Malikova; Pavel Doubek; Petr Miarka; Stanislav Seitl

doi:10.3221/IGF-ESIS.59.33

Influence of the interphase between laser-cladded metal layer and steel substrate on fatigue propagation of a short edge crack

Authors

Lucie Malikova Czech Academy of Sciences, Institute of Physics of Materials, v. v. i., Žižkova 22, 616 00 Brno, Czech Republic, and Brno University of Technology, Faculty of Civil Engineering, Institute of Structural Mechanics, Veveří 331/95, 602 00 Brno, Czech Republic https://orcid.org/0000-0001-5868-5717
Pavel Doubek Brno University of Technology, Faculty of Civil Engineering, Institute of Structural Mechanics, Veveří 331/95, 602 00 Brno, Czech Republic, and OMNI-X CZ s.r.o., Samalova 60a, 615 00 Brno, Czech Republic https://orcid.org/0000-0002-3010-8771
Petr Miarka Czech Academy of Sciences, Institute of Physics of Materials, v. v. i., Žižkova 22, 616 00 Brno, Czech Republic, and Brno University of Technology, Faculty of Civil Engineering, Institute of Structural Mechanics, Veveří 331/95, 602 00 Brno, Czech Republic
Stanislav Seitl Czech Academy of Sciences, Institute of Physics of Materials, v. v. i., Žižkova 22, 616 00 Brno, Czech Republic, and Brno University of Technology, Faculty of Civil Engineering, Institute of Structural Mechanics, Veveří 331/95, 602 00 Brno, Czech Republic https://orcid.org/0000-0002-4953-4324

DOI:

https://doi.org/10.3221/IGF-ESIS.59.33

Keywords:

Laser cladding, Bi-material, Interphase, Fatigue crack propagation, Fracture mechanics, Edge crack

Abstract

Laser cladding is a relatively new technology how to combine properties of various materials. Thus, bi-material interfaces are presented in real structures and can affect the fatigue crack propagation. A cracked bar subjected to pure tensile loading is numerically simulated in this work in order to analyze the effect of the interphase layer between the cladded metal layer and the steel substrate on crack growth in the surface layer. Particularly, the influence of various Young’s modulus of the interphase on the stable/unstable edge crack propagation is assessed. Moreover, the number of cycles necessary for achievement of the defined critical crack length is calculated and it is summarized that knowledge of elastic properties of the thin interphase is crucial for fracture and fatigue analyses.

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Published

22-12-2021

Issue

Vol. 16 No. 59 (2022): January 2022

Section

SI: IGF26 - 26th International Conference on Fracture and Structural Integrity

License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Copyright
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.

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How to Cite

Influence of the interphase between laser-cladded metal layer and steel substrate on fatigue propagation of a short edge crack. (2021). Frattura Ed Integrità Strutturale, 16(59), 514-524. https://doi.org/10.3221/IGF-ESIS.59.33