Ingenieur-Archiv

, Volume 50, Issue 6, pp 393–400 | Cite as

A yield criterion for perforated sheets

  • A. Litewka
  • A. Sawczuk
Article

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.

Keywords

Neural Network Complex System Perforation Information Theory Nonlinear Dynamics 

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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Copyright information

© Springer-Verlag 1981

Authors and Affiliations

  • A. Litewka
    • 1
  • A. Sawczuk
    • 2
  1. 1.Institute for Engineering StructuresTechnical UniversityPoznanPoland
  2. 2.Polish Academy of SciencesWarsawPoland

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