Non-axisymmetric and/or non-elementary response of anisotropic tuff in axisymmetric, elementary triaxial testYota Togashi, Mamoru Kikumoto, Kazuo Tani, Koichi Hosoda and Koji OgawaE3S Web Conf., 92 (2019) 02008DOI: https://doi.org/10.1051/e3sconf/20199202008