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A yield criterion for perforated sheets

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Summary

A criterion of yielding for homogenized materials with an internal structure generated by perforation is developed using the stress and the mixed stress-perforation tensor invariants. For a square pattern of perforation an experimental homogenization procedure is used to determine components of the perforation tensor introduced. A yield condition for the studied materials is proposed and compared with experiments conceived and performed for the purpose.

Übersicht

Es wird ein Fließkriterium entwickelt für Materialien mit durch Perforation erzeugter innerer Struktur. Die Herleitung gründet sich auf gemischte Invarianten von Spannungs- und Perforationstensor. Für ein rechteckiges Perforationsmuster wird eine experimentelle Homogenisierung zur Ermittlung der Komponenten des Perforationstensors durchgeführt. Der vorgeschlagene Fließort wird mit experimentellen Ergebnissen verglichen.

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References

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Authors and Affiliations

  1. Institute for Engineering Structures, Technical University, Piotrowo 5, Poznan, Poland

    A. Litewka

  2. Polish Academy of Sciences, Swietokrzyska 21, Warsaw, Poland

    A. Sawczuk

Authors
  1. A. Litewka
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  2. A. Sawczuk
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Dedicated to Prof. Th. Lehmann on the occasion of his 60th birthday

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Litewka, A., Sawczuk, A. A yield criterion for perforated sheets. Ing. arch 50, 393–400 (1981). https://doi.org/10.1007/BF00537129

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  • DOI: https://doi.org/10.1007/BF00537129

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