stressdilatancy StressDilatancy Bases: ElastoplasticModel Stress-dilatancy relationship D_scale_ instance-attribute D_scale_: float Mpt_ instance-attribute Mpt_: float pa_ instance-attribute pa_: float phi_ instance-attribute phi_: float qa_ instance-attribute qa_: float dgdsig dgdsig(sv0: StateVariable, sv: StateVariable) -> ndarray dilatancy dilatancy(sv0: StateVariable, sv: StateVariable) -> float dilatancy_scale dilatancy_scale(p: float, sv0: StateVariable, sv: StateVariable) stressDilatancySetup stressDilatancySetup()