Use of abrupt strain path change for determining subsequent yield surface: experimental study with metal sheets

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Advances in anisotropy and formability (2010, methodology): “A yield vertex was successfully observed at the point of loading [179, 182], using the abrupt strain path change method proposed by Kuroda and Tvergaard [174].”
Non-quadratic yield criterion for orthotropic sheet metals under plane-stress conditions (2003, unknown): “02 [23].”
Advances in experiments on metal sheets and tubes in support of constitutive modeling and forming simulations (2007, background): “Subsequent yield loci observed for (a) SPCE (IF steel) and (b) 6000-series aluminum alloy with abrupt strain path change following equibiaxial tension (Kuwabara et al., 2000).”