Open AccessA fuzzy set plasticity model for cyclic loading of granular soils
Author(s) -
Cheng Chen,
Lingwei Kong,
Xiaoqing Liu,
Zhonghui Han
Publication year - 2016
Publication title -
international journal of pavement research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 26
eISSN - 1997-1400
pISSN - 1996-6814
DOI - 10.1016/j.ijprt.2016.09.004
Subject(s) - plasticity , dilatant , granular material , hardening (computing) , kinematics , critical state soil mechanics , hysteresis , stress space , constitutive equation , fuzzy logic , materials science , geotechnical engineering , mathematics , mechanics , structural engineering , computer science , engineering , classical mechanics , physics , composite material , finite element method , layer (electronics) , quantum mechanics , artificial intelligence
A constitutive model for describing the stress–strain behavior of granular soils subjected to cyclic loading is presented. The model is formulated using fuzzy set plasticity theory within the classical incremental plasticity theory framework. A special membership function is introduced to provide an analytical and simple geometrical interpretation to formulate hardening, hysteresis feature, material memory, and kinematic mechanisms without resorting to complicated kinematic hardening formulations. The model can accurately describe cyclic loading, dilatancy, material theory and critical state soil mechanics features effects. Two series of cyclic drained triaxial tests data are considered. The characteristic features of behavior in granular soils subjected to cyclic loading are captured