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Nikolić RR, Djoković JM, Hadzima B, et al. Spot-Weld Service Life Estimate Based on Application of the Interfacial Crack Concept. Materials (Basel). 2020;13(13)doi: 10.3390/ma13132976.
Nikolić, R. R., Djoković, J. M., Hadzima, B., & Ulewicz, R. (2020). Spot-Weld Service Life Estimate Based on Application of the Interfacial Crack Concept. Materials (Basel, Switzerland), 13(13), . https://doi.org/10.3390/ma13132976
Nikolić, Ružica R, et al. "Spot-Weld Service Life Estimate Based on Application of the Interfacial Crack Concept." Materials (Basel, Switzerland) vol. 13,13 (2020). doi: https://doi.org/10.3390/ma13132976
Nikolić RR, Djoković JM, Hadzima B, Ulewicz R. Spot-Weld Service Life Estimate Based on Application of the Interfacial Crack Concept. Materials (Basel). 2020 Jul 03;13(13). doi: 10.3390/ma13132976. PMID: 32635339; PMCID: PMC7372346.
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Materials (Basel). 2020 Jul 03;13(13). doi: 10.3390/ma13132976.

Spot-Weld Service Life Estimate Based on Application of the Interfacial Crack Concept.

Materials (Basel, Switzerland)

Ružica R Nikolić, Jelena M Djoković, Branislav Hadzima, Robert Ulewicz

Affiliations

  1. Research Center; University of Žilina, 010 26 Žilina, Slovakia.
  2. Department for Chemistry and Chemical Technology, Technical Faculty in Bor, University of Belgrade, 19210 Bor, Serbia.
  3. Department of Production Engineering and Safety, University of Technology, 42201 Czestochowa, Poland.

PMID: 32635339 PMCID: PMC7372346 DOI: 10.3390/ma13132976

Abstract

In the automotive industry, spot-welding is the most common method of joining components. Thus, determining the service life of spot-welds is of great importance in designing assemblies or structures. It is well-known that lately there has been a trend in the industry toward reducing the fuel consumption and harmful gasses emissions, as well as the weight of structures with the application of the lightweight materials, like aluminum alloys. In this paper, research is presented on the behavior of a spot-weld between the plates made of the two dissimilar materials-aluminum alloy and steel. In addition, the influence of the plates' thickness and the weld nugget's diameter on welds' service life is presented. In this analysis, a concept of the interface crack between the two linear elastic materials was applied. Obtained results show that the plates' thickness and the nugget's size, as well as the working load, impose significant influences on the service life of a spot-weld between the two dissimilar materials.

Keywords: Paris’s law; interface crack; service life; spot-welding; thin sheets

References

  1. Materials (Basel). 2020 Mar 13;13(6): - PubMed

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Grant support