Assessment of Peak/Residual Failure Envelopes of Clayey Soil via Suction-controlled Ring Shear TestingJairo E. Yepes, Laureano R. Hoyos, Claudia L. Velosa and Anand J. PuppalaE3S Web Conf., 642 (2025) 03007DOI: https://doi.org/10.1051/e3sconf/202564203007