Premium
A simple contact–friction interface element with applications to buried culverts
Author(s) -
Katona Michael G.
Publication year - 1983
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/nag.1610070308
Subject(s) - culvert , interface (matter) , slippage , finite element method , virtual work , structural engineering , simple (philosophy) , engineering , node (physics) , computer science , pulmonary surfactant , philosophy , gibbs isotherm , epistemology , chemical engineering
A simple friction–contact interface element is introduced which simulates frictional slippage, separation, and re‐bonding of two bodies initially mating at a common interface and subsequently deforming with an arbitrary static loading schedule. Constraint equations between initially mating node pairs and the general principle of virtual work are used to formulate the interface element for a finite element solution procedure. Some advantages of the interface element include; easy implementation intostandard finite element programs, direct determination of interface forces without round‐off problems, and the generality afforded by the virtual work formulation to include other non‐conservative models in the system. The application of the interface element to an idealized buried culvert problem illustrates that the model behaves properly. A second application, for a long‐span culvert installation with incremental soil loading, demonstrates the importance of modelling slippage at the culvert–soil interface in order to conform with experimental observations.