Premium
AN INTERFACE MODEL TO DESCRIBE VISCOPLASTIC BEHAVIOR
Author(s) -
Samtani N. C.,
Desai C. S.,
Vulliet L.
Publication year - 1996
Publication title -
international journal for numerical and analytical methods in geomechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.419
H-Index - 91
eISSN - 1096-9853
pISSN - 0363-9061
DOI - 10.1002/(sici)1096-9853(199604)20:4<231::aid-nag816>3.0.co;2-e
Subject(s) - viscoplasticity , interface (matter) , finite element method , constitutive equation , interface model , mechanics , materials science , computer science , structural engineering , engineering , physics , human–computer interaction , bubble , maximum bubble pressure method
A constitutive model to describe viscoplastic or time‐dependent behaviour of interface materials is presented. Viscoplastic characteristics of the interface material are modeled based on Perzyna's theory of viscoplasticity and the Hierarchical Single Surface (HiSS) series of constitutive models. Experiments performed using a new interface test device to characterize the behaviour of cohesive soil–rock interfaces are described. Procedures to derive model parameters are presented together with validation of the model. Finite element implementation of the interface element is described along with verification of the model with respect to field behaviour of a creeping natural slope.