Abstract

AbstractTo be able to describe experimentally observed deviations in the initial yield surface from the von Mises ellipse as well as translation, rotation and distortion of a subsequent yield surface, a function of the second and third invariants of the translated deviator stress tensor was proposed in an earlier paper [1]. This relationship is further considered, and the manner in which various encountered parameters influence the fitting of an experimentally determined yield surface, is discussed. The experimental data employed in illustrations is taken from literature.

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