Combining upper bound and strain path methods for evaluating penetration resistance

I. Einav, Mark Randolph

    Research output: Contribution to journalArticle

    316 Citations (Scopus)


    The problem of penetration resistance involves a continuously moving zone of plastic distortion in the soil medium. This has been explored for cone penetration and pile installation, where additional volume is intruded into the soil, using the strain path method with the flow field derived from classical fluid mechanics. This paper focuses on a new generation of penetrometers, which have a much greater projected area than the cone shaft, and introduces a version of the strain path method based on classical upper bound solutions for the penetrometers. The new approach is used to explore the effects of high strain rates, and gradual strength degradation, on the penetration resistance of cylindrical and spherical penetrometers. Copyright (c) 2005 John Wiley & Sons, Ltd.
    Original languageEnglish
    Pages (from-to)1991-2016
    JournalInternational Journal for Numerical Methods in Engineering
    Issue number14
    Publication statusPublished - 2005


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