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A note on failure conditions for layered materials

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Sommario

Vengono presentati alcuni criteri di rottura per materiali stratificati eterogenei, caratterizzati da regolare altenanza di due materiali omogenei. Tali criteri sono stati ottenuti mediante una procedura di omogeneizzazione, sulla base delle condizioni di rottura dei materiali che compongono il continuo stratiflcato. Sono stati considerati strati formati da materiali del tipo di Mohr-Coulomb (per i casi in cui i materiali sono o privi di coesione, oppure sono dotati dello stesso angolo d'attrito), o da materiali che obbediscono al criterio della massima trazione. Le pre-dizioni teoriche mostrano un buon accordo con i risultati di prove sperimentali eseguite da altri autori su sabbie e rocce stratificate.

Summary

Some failure conditions for heterogeneous layered media, formed by two alternating homogeneous materials, are presented. The failure criteria have been obtained by a homogenization procedure, on the basis of the criteria of the materials forming the layered medium. The paper deals with layers formed by Mohr-Coulomb's type materials (the cases of cohesionless materials or materials provided by the same friction angle are discussed), as well as with layers undergoing the maximum tensile stress criterion. Theoretical predictions are in good agreement with the experimental results obtained by other authors on layered sands and laminated rocks.

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Sacchi Landriani, G., Taliercio, A. A note on failure conditions for layered materials. Meccanica 22, 97–102 (1987). https://doi.org/10.1007/BF01556908

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  • DOI: https://doi.org/10.1007/BF01556908

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